Episode 313: Douglas Donald Moore, known in Meadowvale, Ontario, as a drug supplier for young teens, gained notoriety in Mississauga for killing three young men before taking his own life in his jail cell while awaiting trial on 11 charges for sexual assaults on three boys. Peel Regional Police assert that Robert Grewal, 22, of Meadowvale, and Giuseppe (Joseph) Manchisi, 20, of Milton, who were close friends, were killed in 2003 by Moore. After Moore’s death, he was named the prime suspect in the murders of Grewal and Manchisi. Additionally, police believe Moore was responsible for killing Rene Charlebois, 15, also of Meadowvale. All three victims disappeared in late 2003, and their bodies were discovered in spring 2004. Charlebois’ remains were found in an Orangeville landfill, while Grewal and Manchisi’s remains were located in wooded areas near Montreal. In 2005, Moore’s former common-law wife and an unidentified 16-year-old were convicted of accessory to murder after the fact. The teen assisted in disposing of evidence, including driving with Moore to Quebec to bury the bodies of Grewal and Manchisi. Moore believed the two men had stolen drugs and cash from him, but it was later revealed that the 16-year-old was responsible for the robbery. The police have never disclosed the motive behind the killing of Rene Charlebois. Sources: Mississauga | Canadian Encyclopedia History of Mississauga | MIssissauga.ca Canada's most notorious murder case happened in Mississauga in the 1970s Improbable Cause: The Harrison Family Murders Search: Douglas Donald Moore | Newspapers.com Youth appealing in Manchisi case Murder victim’s grieving mother still has questions Dad seeks slain son’s body parts | Toronto Star Douglas Donald Moore (1968-2004) Cold North Killers by Lee Mellor | Everand Douglas Donald Moore | Murderpedia, the encyclopedia of murderers Opinion: The horrifying path of Douglas Moore Ontario Newsroom | Coroner’s Inquest 50TH ANNIVERSARY: Notorious Meadowvale serial killer left suicide note Didn't know killer's background, doctor testifies | The Star Spree killer feared dangerous-offender status | The Star `I'm sorry ... I'm finally free': Killer | The Star Learn more about your ad choices. Visit megaphone.fm/adchoices