Leslie Erin Mahaffy (July 5, 1976 – June 16, 1991) was the second Canadian murder victim of killers Paul Bernardo and Karla Homolka.

[1] Mahaffy's kidnapping was one in a series of disappearances of Ontario schoolgirls in the early 1990s, including Kristen French, also a victim of Bernardo and Homolka.

The evening prior to her abduction, Leslie attended a memorial for one of the teens as well as an informal get-together and subsequently missed her Friday night curfew.

[2] Her mother Debbie would later become prominent in the struggle to maintain and enforce the judge's gag order about the trials of Mahaffy's killers and the videotapes they made of their own crimes, which were used as evidence against them.

At the time of her abduction and subsequent murder in mid-June 1991, a few weeks before her fifteenth birthday, Leslie Mahaffy was a Grade 9 student at M.M.

[2] On the evening of June 14, 1991, Mahaffy went to a funeral home to attend a wake for her friend Chris Evans, a boy who had died in a car accident earlier that week.

[2] Paul Bernardo eventually admitted he had been on Keller Court, where the Mahaffy home was located, to steal license plates.

Homolka's version of the story is similar, but she claims that once he got Mahaffy to the car to fetch the cigarette, he pulled a knife on the girl to get her compliance.

[citation needed] He has claimed he did not even know she was dead until, after putting gas in the car and taking a shower, he tried to pick her up to carry her away.

When the family left, Bernardo and Homolka used his grandfather's circular saw to dismember Mahaffy's body into pieces small enough to lift when covered with concrete.

[citation needed] After Bernardo's final bid for an appeal before the Supreme Court was rejected, the tapes were all destroyed by the Ontario government.

[citation needed] Several days before Homolka's release from prison in 2005, Bernardo was interviewed by police and his lawyer, Tony Bryant.

Further, Bernardo claimed that Homolka's plan was to murder Mahaffy by injecting an air bubble into her bloodstream, eventually causing an embolism.