John Reginald Halliday Christie, known to his family and friends as Reg Christie, was an English serial killer and alleged necrophile active during the 1940s and early 1950s. He murdered at least eight people—including his wife, Ethel—by strangling them in his flat at 10 Rillington Place, Notting Hill, London. The bodies of three of Christie's victims were found in a wallpaper-covered kitchen alcove soon after Christie moved out of Rillington Place during March 1953. The remains of two more victims were discovered in the garden, and his wife's body was found beneath the floorboards of the front room. Christie was arrested and convicted of his wife's murder, for which he was hanged.
Two of Christie's victims were Beryl Evans and her baby daughter Geraldine, who, along with Beryl's husband, Timothy Evans, were tenants at 10 Rillington Place during 1948–49. This case sparked huge controversy after Evans was charged with both murders, found guilty of the murder of his daughter, and hanged in 1950. Christie was a major prosecution witness; when his own crimes were discovered three years later, serious doubts were raised about the integrity of Evans's conviction.