Karla Leanne Homolka (born 4 May 1970), also known as Karla Leanne Teale and Leanne Bordelais is a convicted Canadian serial killer who helped her husband rape and murder at least three women. She attracted worldwide media attention when she was convicted of manslaughter following a plea bargain in the 1991 and 1992 rape-murders of two Ontario teenage girls, Leslie Mahaffy and Kristen French, as well as the rape and death of her sister Tammy.
Homolka and Paul Bernardo, her husband and partner in crime, were arrested in 1993. In 1995, Bernardo was convicted of the two teenagers' murders and received life in prison and a dangerous offender designation, the full maximum sentence allowed in Canada. During the 1993 investigation, Homolka stated to investigators that Bernardo had abused her, and that she had been an unwilling accomplice to the murders. As a result, she struck a deal with prosecutors for a reduced prison sentence of 12 years in exchange for a guilty plea for manslaughter. Homolka scored 5/40 on the Psychopathy Checklist, in contrast to Bernardo's 35/40.