David and Catherine Birnie

David Birnie was the oldest of five children and grew up in Wattle Grove, a semi-rural suburb of Perth. School friends and church acquaintances remember Birnie's family as having been dysfunctional and subject to frequent rumours involving alcoholism, promiscuity and incest. The family never had regular meals together, and Birnie's parents did not cook meals for their children.

In the early 1960s, Birnie's parents decided to move the family to another Perth suburb, where he eventually met Catherine Harrison through mutual friends. At age 15 he left school to become an apprentice jockey for Eric Parnham at the nearby Ascot Racecourse. During his time there, Birnie physically abused the horses and developed a habit of exhibitionism. One night, Birnie, wearing only stockings over his head, broke into the room of an elderly lady where he was boarding and attempted to rape her.

By the time he was an adolescent, Birnie had been in and out of prison for several misdemeanors and felonies. As an adult he became addicted to sex and pornography, and was a paraphiliac. In his early twenties, Birnie married his first wife and had a daughter, Tanya, who was aged 10 at the time of his arrest. Tanya, who has changed her surname since Birnie's capture, has never married and had no children, stating, "I don't wanna spawn another David Birnie."{{Cite web |url=http://www.mamamia.com.au/daughter-of-david-birnie/ |title=Why the daughter of notorious serial killer David Birnie never wants to have children |first=Jessica |last=Chambers |date=2017-02-09 |website=MamaM!a |access-date=2017-03-17 |language=en-US}}

In late 1986, at the time of the murders, Birnie was employed at a car wrecker's shop in the Perth suburb of Willagee.

Catherine Birnie was born Catherine Margaret Harrison on 23 May 1951. She was two years old when her mother Doreen died giving birth to her brother, who himself died two days later. Unable to raise Catherine, her father Harold sent the girl to live with her maternal grandparents. At age 10, a custody dispute resulted in Harold regaining sole custody of Catherine.

Catherine met David at age twelve and began a romantic relationship with him two years later. Her father pleaded with her on several occasions to leave David as her involvement with him led to her getting into trouble with police, resulting in her being sent to a youth prison in adolescence. Encouraged by a parole officer, Catherine began working for the McLaughlin family as a housekeeper. She married Donald McLaughlin on her 21st birthday and had seven children. Their firstborn, a son, was struck and killed by a car in infancy.

In 1985, Catherine left her family and resumed her relationship with David.{{Cite web |url=http://www.news.com.au/national/breaking-news/serial-killer-birnie-to-remain-in-wa-jail/news-story/f9836a19a7818d7128298ac8f899104d |title=Serial killer Birnie to remain in WA jail |first=Rebecca |last=Le May |date=29 March 2013 |website=News.com.au |access-date=2017-03-27 |language=en}} The couple were never legally married, but Catherine changed her surname by deed poll.{{Cite web |url=http://www.perthnow.com.au/news/opinion/liam-bartlett/liam-bartlett-perth-serial-killer-catherine-birnie-deserves-no-mercy/news-story/5649b2c46d77e58b7ccedec978771325 |title=Perth serial killer Catherine Birnie deserves no mercy |first=Liam |last=Bartlett |date=22 November 2015 |website=PerthNow |access-date=2017-03-27}}

Over a period of five weeks,{{Cite news |url=http://www.smh.com.au/national/birnie-prepared-suicide-inquiry-told-20071218-1hs0.html |title=Birnie prepared suicide, inquiry told |last=Perpitch |first=Nicolas |date=2007-12-18 |newspaper=The Sydney Morning Herald |access-date=2017-03-20 |language=en-US}} the Birnies abducted five women and girls aged between 15 and 31. All the victims except for one were raped at the couple's residence at 3 Moorhouse Street and subsequently murdered. The sole exception was their final victim, who escaped the day after her abduction and led police back to the Birnie house, thus ending their crime spree.

Twenty-two-year-old Mary Neilson, a psychology student at the University of Western Australia and part-time delicatessen worker, met David at the car wrecker's shop where he worked. David offered to sell Neilson some cheap tires for her car and subsequently gave her his phone number.{{Cite news |url=http://www.news.com.au/lifestyle/real-life/true-stories/catherine-and-david-birnie-claimed-first-victim-30-years-ago/news-story/c2701f916c53d333d32699ea065e0719 |title=Catherine and David Birnie claimed first victim 30 years ago |first=Olivia |last=Lambert |date=13 October 2016 |website=News.com.au |access-date=2017-04-06|language=en}} Upon visiting Moorhouse Street on 6 October 1986, Neilson was gagged, chained to a bed, and raped by David while Catherine observed. She was then taken to Gleneagle, near Albany Highway in Bedfordale, where she was raped again and strangled with a nylon cord. David then stabbed her thinking that it would speed up her decomposition as he "read that in a book somewhere."{{quote without source |date=January 2025}} Catherine joined him in burying Neilson in a shallow grave. She would have received her degree for psychology from the university one year after her murder.

Two weeks later, Susannah Candy, a 15-year-old high school student from Nedlands, was abducted while hitchhiking along the Stirling Highway in Claremont. Once she entered the Birnies' car, Candy was bound and held at knifepoint. The Birnies forced her to send letters to her family to assure them that she was all right, then took Candy to Moorhouse Street and subjected her to the same ordeal as Neilson. Afterward, after an abortive attempt to strangle the girl with the nylon cord, the Birnies forced sleeping pills down her throat. Once they took effect, David put the cord around her neck and told Catherine to prove her undying love for him by murdering the girl herself. Catherine complied and killed Candy while David watched. Candy was buried close to Neilson's gravesite in Gleneagle.{{cite web |url=http://www.trutv.com/library/crime/serial_killers/partners/birnie/8.html |title=The Birnies - 8. A Passion for Murder |first=Paul B. |last=Kidd |work=Tru TV |publisher=Turner Entertainment Networks, Inc |archiveurl=https://web.archive.org/web/20090310030709/http://www.trutv.com/library/crime/serial_killers/partners/birnie/8.html |archivedate=10 March 2009}}

When asked later why she murdered Candy, Catherine said:{{quote without source |date=January 2025}}

{{blockquote |text=because I wanted to see how strong I was within my inner self. I didn't feel a thing. It was like I expected. I was prepared to follow him to the end of the earth and do anything to see that his desires were satisfied. She was a female. Females hurt and destroy males.}}

On 1 November, 31-year-old Noelene Patterson ran out of fuel on Canning Highway while on her way home from her job as bar manager at the Nedlands Golf Club. Patterson was picked up by the Birnies and, similar to the first two victims, was forcibly taken to Moorhouse Street and repeatedly raped by David. The Birnies originally decided to murder Patterson that same night, but David kept her prisoner in the house for three days amid an apparent emotional attachment to the woman. Catherine quickly became jealous and made an ultimatum: David would have to kill Patterson, or Catherine would kill herself. He immediately forced an overdose of sleeping pills down Patterson's throat and strangled her while she slept. They took her body to Gleneagle but buried it away from the others. Catherine reportedly got great pleasure from throwing sand on Patterson's face.{{cite news |title=Couple Charged |first=Cyril |last=Ayris |date=12 November 1986 |newspaper=The West Australian |location=Perth, Western Australia |page=1}}

On 5 November, the Birnies abducted 21-year-old Denise Brown from a bus stop on Stirling Highway. In the same fashion as the earlier victims, Brown was abducted at knifepoint and assaulted at Moorhouse Street. The following afternoon, Brown was taken to the Wanneroo pine plantation where, in the seclusion of the forest, David raped her in the couple's car while they waited for darkness. After dragging Brown from the car, David raped her again and stabbed her in the neck. Convinced that the girl was dead, they dug a shallow grave and laid her body in it, but Brown sat up in the grave. David then grabbed an axe, struck her twice in the head and buried her again.

On 9 November, 17-year-old Kate Moir was abducted at knifepoint after accepting a ride from the Birnies.{{Cite web |url=http://www.watoday.com.au/wa-news/stitch-her-up-police-thought-birnie-escape-victim-was-faking-it-20170209-gu9g7t.html |title='Stitch her up': Police thought Birnie escape victim was faking it |last=McNeill |first=Heather |date=2017-02-09 |website=WAtoday |access-date=2017-03-17 |language=en-US}} David held a knife to her throat and forced her to ring her mother. Moir told her mother that she had too much to drink and was staying at a friend's house, hoping her mother would realise it was a ruse and call the friend, knowing she was not a drinker.{{Cite web |url=https://au.news.yahoo.com/a/34371633/how-i-escaped-the-house-of-horrors-hostage-of-australia-s-most-evil-killers-tells-how-she-fled-david-and-catherine-birnie/#page1 |title='How I escaped the house of horrors': Hostage of Australia's most evil killers tells how she fled |first=Natasha |last=Christian |date=8 February 2017 |website=Yahoo! News |access-date=2017-03-18}} Moir later stated that she asked them if they intended to kill or rape her, and was informed, "We'll only rape you if you're good".{{quote without source |date=January 2025}} She was forced to dance for the Birnies, and slept in their bed while handcuffed to David.{{Cite web |url=http://www.mamamia.com.au/kate-moir-escape-story/ |title='You know you're gonna die': How a teen survived Australia's worst serial killer couple |first=Jessica |last=Clark |date=2017-02-06 |website=MamaM!a |access-date=2017-03-17 |language=en-US}}

After David went to work on the day following her capture, Catherine went to the front door to carry out a drug deal and forgot to chain Moir to the bed. Moir broke the lock of a nearby window and climbed through but hit her head on concrete.{{Cite web |url=http://www.news.com.au/entertainment/tv/are-you-going-to-rape-me-or-kill-me/news-story/9304099ceb7f9966e7fecbd3999e1173 |title=Are you going to rape me or kill me? |first=Debbie |last=Schipp |date=5 February 2017 |website=News.com.au |access-date=2017-03-20 |language=en}} After knocking on various neighbours' doors, she jumped a gate and was attacked by David's dog. She ran into a nearby vacuum cleaner shop, informing the owner that she had been raped. Moir detailed her ordeal to police; while some of the officers were initially skeptical of her story, 22-year-old Constable Laura Handcock believed her from the outset due to the amount of detail she provided, including the Birnies' address and telephone number.{{Cite web |url=http://www.watoday.com.au/entertainment/tv-and-radio/murder-uncovered-reveals-more-possible-victims-of-david-and-catherine-birnie-20170209-gu91h0.html |title=Murder Uncovered reveals more possible victims of David and Catherine Birnie |last=Dobbin-Thomas |first=Marika |date=2017-02-09 |website=WAtoday |access-date=2017-03-27 |language=en-US}}

The Birnies had given themselves aliases, but Moir had read David's name on a medicine bottle.{{Cite web |url=http://www.perthnow.com.au/news/western-australia/birnie-survivor-kate-moir-and-wa-police-officer-laura-hancock-together-after-three-decades/news-story/902072b9ad2a711520bcdfc83c4e3be7 |title=Birnie survivor Kate Moir and WA police officer Laura Hancock together after three decades |first=Kate |last=Campbell |date=4 February 2017 |website=PerthNow |access-date=2017-03-27}} Moir stated the couple had watched the film Rocky on video, and described a drawing she had concealed in the house as proof of her presence. Subsequently, police found the drawing and the video cassette copy of Rocky in the Birnies' VCR. The Birnies were arrested, and during their interviews they gave conflicting information; Catherine denied ever meeting Moir, while David insisted Moir had come to their house voluntarily to engage in consensual sex. Detective Sergeant Vince Katich convinced David to confess and reveal where the previous victims had been buried.

There is speculation that the Birnies were responsible for the disappearance of Cheryl Renwick in May 1986{{Cite news |url=https://thewest.com.au/news/wa/missing-mum-linked-to-birnie-murders-ng-b88374591z |title=Haunting question: Did the Birnies kill my mother? |first=Gabrielle |last=Knowles |date=2017-02-07 |newspaper=The West Australian |access-date=2017-03-18 |language=en-AU}} and Barbara Western in June 1986.{{Cite news |url=http://www.smh.com.au/entertainment/tv-and-radio/murder-uncovered-reveals-more-possible-victims-of-david-and-catherine-birnie-20170208-gu8o1o.html |title=Murder Uncovered reveals more possible victims of David and Catherine Birnie |last=Dobbin-Thomas |first=Marika |date=2017-02-09 |newspaper=The Sydney Morning Herald |access-date=2017-03-20 |language=en-US}} It has also been suggested that David was responsible for the disappearance of Lisa Marie Mott in 1980; however, his first wife accounted for his whereabouts on the day Mott disappeared.{{Cite web |url=http://www.news.com.au/entertainment/tv/police-didnt-initially-believe-kate-moir-who-escaped-australias-worst-serial-killers/news-story/ee5f5408dd1aad8d01117275de649504 |title=Police didn't initially believe Kate Moir who escaped Australia's worst serial killers |first=Debbie |last=Schipp |date=9 February 2017 |website=News.com.au |access-date=2017-03-20 |language=en}} This crime remains unsolved.

When sent to trial, David pleaded guilty to four counts of murder{{Cite web |url=https://the-line-up.com/moorhouse-murders |title=The Moorhouse Murders: The Chilling Serial Killer Couple Who May Have Inspired Hounds of Love |author=Orrin Grey |date= June 18, 2018 |publisher=The Lineup |accessdate=October 9, 2024}} and one count each of abduction and rape. When asked why he had pleaded guilty, he gestured toward the victims' families and said, "It's the least I could do."{{quote without source |date=January 2025}} He was sentenced to four terms of life imprisonment. After being found sane enough to stand trial, Catherine was also sentenced to four terms of life imprisonment by the Supreme Court of Western Australia; under law at the time, both were required to serve twenty years before being eligible for parole.

Initially, David was held at the maximum-security Fremantle Prison, but he was soon moved to solitary confinement to keep him from coming to harm from other prisoners. Three of the original death row cells were converted for him and he stayed there until the prison was closed in 1991. The cell can occasionally be viewed on the True Crime Tour held daily at Fremantle Prison. While incarcerated, the Birnies exchanged more than 2,600 letters but were not allowed any other form of contact.{{Cite web |url=http://www.watoday.com.au/wa-news/release-wa-serial-killer-top-qc-says-20130404-2h8tz.html |title='Release WA serial killer', top QC says |date=2013-04-04 |website=WAtoday |access-date=2017-03-20 |language=en-US}}

David was found dead in his cell at Casuarina Prison on 7 October 2005 at 4:30{{nbsp}}am local time.{{cite news |url=http://www.smh.com.au/news/national/serial-killer-found-hanged-in-cell/2005/10/07/1128562975277.html |title=Serial killer found hanged in cell |date=7 October 2005 |newspaper=The Sydney Morning Herald |language=en |access-date=2017-03-17}} He was 54 years old. An inquest found that he had hanged himself from an air vent using a length of cord. Various factors led to his suicide; a failure to provide him with his antidepressants had exacerbated his depression, his computer had been confiscated and he was suspected of sexually assaulting another prisoner. He was described by a former prison officer as a 'model prisoner' who looked after injured animals.{{Cite web |url=http://www.perthnow.com.au/news/western-australia/evil-serial-killer-david-birnie-was-a-softie-inside-ex-prison-guard/news-story/091a0bf60ff3fbdc6ca96a6c74019a7b |title=Evil serial killer David Birnie was 'a softie inside' - ex-prison guard |first=Trevor |last=Paddenburg |date=13 November 2010 |website=PerthNow |access-date=2017-03-17}} Catherine was not allowed to attend his funeral.{{Cite news |url=http://www.smh.com.au/national/serial-killer-and-torturer-due-for-sentence-review-20100106-lv7u.html |title=Serial killer and torturer due for sentence review |date=2010-01-07 |newspaper=The Sydney Morning Herald |access-date=2017-03-17 |language=en-US}}

Catherine is imprisoned at Bandyup Women's Prison. Since being incarcerated she has worked as a prison librarian and appeared in a prison production of Nunsense.{{Cite web |url=https://au.news.yahoo.com/a/34371369/hurry-up-and-die-quickly-son-of-serial-killer-catherine-birnie-says-she-should-die-in-prison/#page1 |title='Hurry up and die, quickly': Son of serial killer Catherine Birnie says she should die in prison |first=Natasha |last=Christian |date=8 February 2017 |website=Yahoo! News |access-date=2017-03-18}} In 2007, her parole application was rejected and the then Attorney-General of Western Australia, Jim McGinty, said that her release was unlikely while he remained in office.{{cite web |url=http://www.news.com.au/perthnow/story/0,21598,21758888-2761,00.html |title=Birnie 'will not be freed' |last=Spagnolo |first=Joe |agency=AAP |date=19 May 2007 |website=PerthNow |url-status=dead |archive-url=https://web.archive.org/web/20101016064023/http://www.perthnow.com.au/news/western-australia/birnie-will-not-be-freed/story-e6frg13u-1111113570166 |archive-date=16 October 2010}}

Catherine's case was to be reviewed again in January 2010; however, on 14 March 2009, new Western Australian Attorney-General Christian Porter, following requests from the victims' families, determined she would stay in jail for life. This decision makes her the third Australian woman (after Katherine Knight and Patricia Byers) to have her papers marked "never to be released".{{cite web |url=http://www.news.com.au/perthnow/story/0,27574,25186862-2761,00.html |title=Killer Catherine Birnie given no hope of parole |first=Nick |last=Taylor |date=14 March 2009 |work=PerthNow |url-status=dead |archiveurl=https://web.archive.org/web/20090317004131/http://www.news.com.au/perthnow/story/0%2C27574%2C25186862-2761%2C00.html |archivedate=17 March 2009}} Her appeal of this decision was turned down in March 2010 by Porter.{{cite web |url=http://www.abc.net.au/news/stories/2010/03/06/2838371.htm |archive-url=https://web.archive.org/web/20100309122459/http://www.abc.net.au/news/stories/2010/03/06/2838371.htm |url-status=dead |archive-date=9 March 2010 |title=Serial killer refused parole |date=6 March 2010 |website=ABC News |access-date=25 November 2019}} Her fourth bid for parole was declined in 2016.{{Cite web |url=http://www.perthnow.com.au/news/western-australia/serial-killer-catherine-birnies-fourth-bid-for-parole-rejected/news-story/c9aaefcd0ec3bc9aa0971887393bfc61 |title=Serial killer Birnie's parole bid rejected |first=Kate |last=Campbell |date=18 March 2016 |website=PerthNow |access-date=2017-03-17}} That same year, Kate Moir began a campaign to end Western Australian laws that automatically put convicts up for parole every three years.{{cite web |url=https://www.huffingtonpost.com.au/2016/04/10/serial-killer-birnie_n_9638026.html |title=Survivor of Perth Serial Killers The Birnies Speaks Out |last1=Charleston |first1=Libby-Jane |date=4 October 2016 |website=Huffington Post Australia |access-date=26 October 2016}} Moir has stated Birnie has never even applied for parole.{{Cite news |url=https://thewest.com.au/news/wa/survivor-wants-birnie-forgotten-ng-ya-103055 |title=Survivor Kate Moir wants Birnie forgotten |first=Tim |last=Clarke |date=2016-04-04 |newspaper=The West Australian |access-date=2017-03-24 |language=en-AU}}

In 2017, Catherine's youngest son, under the alias Peter, called for her execution, stating that his relation to her has resulted in him being assaulted on multiple occasions. He also supports Moir's campaign.{{Cite news |url=https://thewest.com.au/news/wa/i-am-a-victim-of-my-mothers-crimes-ng-ya-104753 |title=I am a victim of my mother's crimes, says Catherine Birnie's son |first=Tim |last=Clarke |date=2016-04-22 |newspaper=The West Australian |access-date=2017-03-24|language=en-AU}}{{Cite news |url=https://thewest.com.au/news/australia/mp-supports-bid-to-change-parole-laws-ng-ya-103829 |title=MP supports bid to change parole laws |first=Tim |last=Clarke |date=2016-04-12 |newspaper=The West Australian |access-date=2017-03-24 |language=en-AU}}

The case was included in Season 1, Episode 6 ("The Moorhouse Horrors") of Crime Investigation Australia, first aired 2005.{{Citation |title=The Moorhouse Horrors/The Call Girl Killing |url=https://www.imdb.com/title/tt6274468/ |access-date=2024-05-18 |series=CIA: Crime Investigation Australia}}

The case formed an episode of Australian Families of Crime. Nine Network Australia (2010).{{Citation |last= |first= |title=Killer Couple: David and Catherine McBirnie |date=2010-06-22 |url=https://www.imdb.com/title/tt2494510/ |access-date=2024-05-18 |series=Australian Families of Crime }}

The case was covered by Casefile True Crime Podcast on 27 August 2016.{{Cite web |last= |first= |date=2016-08-27 |title=Case 31: The Killer Couple |url=https://casefilepodcast.com/case-31-killer-couple/ |access-date=2024-05-18 |website=Casefile: True Crime Podcast |language=en-US}}

On 9 November 2017, the case was discussed by Georgia Hardstark in an episode of the podcast My Favorite Murder.{{Cite web |last1=Kilgariff |first1=Karen |last2=Hardstark |first2=Georgia |date=November 2017 |title=94 - Go Get Your Thing |url=https://open.spotify.com/episode/7h6kVxNevP0FeKHbsGh3y7?si=YWEFiuKlRzGG0VvXqNTcbg |website=Spotify |publisher=My Favourite Murder}}

The case was detailed on episode 75 of the True Crime All the Time podcast on 22 April 2018.{{Citation |title=David and Catherine Birnie |date=2018-04-23 |url=https://open.spotify.com/episode/5yTa4OiwdIW9KNtjAPVf46 |access-date=2024-05-18 |language=en}}

The 2016 Australian film Hounds of Love is based on several true murders, but most closely resembles the Moorhouse Murders.{{Cite news |last=Douglas |first=James Robert |date=2017-07-26 |title=True crime plunderers: the dark truth about Hounds of Love and Australia's new gorefest |url=https://www.theguardian.com/film/2017/jul/26/hounds-of-love-australia-gorefest-true-crime |access-date=2024-05-18 |work=The Guardian |language=en-GB |issn=0261-3077}}

Both Catherine and David Birnie were also featured on Deadly Women in the 8th episode from Season 3 called Fatal Obsession.{{Citation needed|date=May 2024}}

The case was covered by Morbid: A True Crime Podcast on May 8, 2021, as a part of a two-episode series, titled "Episode 230: Catherine & David Birnie Part 1" and "Episode 231: Catherine & David Birnie Part 2".{{Cite web |title=Morbid: E230: Catherine & David Birnie Part 1 |url=https://wondery.com/shows/morbid-a-true-crime-podcast/episode/10863-catherine-amp-david-birnie-part-1/ |access-date=2024-05-18 |website=Wondery - Feel The Story |language=en-US}}{{Cite web |title=Morbid: E231: Catherine & David Birnie Part 2 |url=https://wondery.com/shows/morbid-a-true-crime-podcast/episode/10863-catherine-amp-david-birnie-part-2/ |access-date=2024-05-18 |website=Wondery - Feel The Story |language=en-US}}

The case was also covered by The Serialholic podcast on July 3, 2019, titled "David & Catherine Birnie".{{Citation needed|date=May 2024}}

• List of serial killers by country

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{{refbegin |30em}}

• {{cite book |title=The Visual Encyclopedia of Serial Killers |editor-first1=Nigel |editor-last1=Blundell |editor-first2=Susan |editor-last2=Blackhall |chapter=David and Catherine Birnie |date=2004 |location=London, England |publisher=PRC Limited |pages=46–49 |isbn=978-1-85648-710-8}}
• {{cite web |url=http://www.crimezzz.net/serialkillers/B/BIRNIE_david_catherine.php |title=Birnie, David & Catherine |first=Elizabeth |last=Westch |date=2005 |website=Serial Killer Crime Index |access-date=12 February 2007 |url-status=dead |archive-url=https://web.archive.org/web/20070927141326/http://www.crimezzz.net/serialkillers/B/BIRNIE_david_catherine.php |archive-date=27 September 2007}}
• {{cite episode |title=The Moorhouse Horrors |series=Crime Investigation Australia |series-link=Crime Investigation Australia (TV series) |first=Steve |last=Liebmann |authorlink=Steve Liebmann |network=Foxtel |station=Channel 9 |date=30 October 2007 |series-no=1 |number=6}}

{{refend}}

{{refbegin |30em}}

• {{cite web |url=http://casefilepodcast.com/case-31-killer-couple/ |title=Case 31: The Killer Couple |date=27 August 2016 |website=Casefile True Crime Podcast}}
• {{cite web |url=http://www.sonic.net/~msnyder/femvio/fem/birnie.htm |title=Catherine Birnie – Australia |first=M. |last=Snyder |website=Female Serial Killers |url-status=dead |archive-url=https://web.archive.org/web/20040715110213/http://www.sonic.net/~msnyder/femvio/fem/birnie.htm |archive-date=2004-07-15}}

{{refend}}

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{{subject bar |auto=0 |portal1=Western Australia |portal2=Biography |portal3=Crime }}

{{DEFAULTSORT:Birnie, David and Catherine}}

Category:20th-century Australian criminals

Category:Australian murderers of children

Category:Australian people convicted of murder

Category:Australian people convicted of rape

Category:Australian prisoners sentenced to life imprisonment

Category:Australian rapists

Category:Australian serial killers

Category:Criminal couples

Category:Criminals from Western Australia

Category:Married couples

Category:People convicted of murder by Western Australia

Category:People from Perth, Western Australia

Category:Prisoners sentenced to life imprisonment by Western Australia

Category:Serial killer duos