slipping, which signaled the possibility that she could identify her attackers if she was set free or lived. The following day, Bernardo claimed, Homolka fed her a lethal dose of Halcion; Homolka claimed that Bernardo strangled her. They put Mahaffy's body in their basement, and the day after the Homolka family had dinner at Bernardo's and Homolka's house. After the Homolkas and their remaining daughter Lori left, Bernardo and Homolka decided that the best way to dispose of the evidence would be to dismember Mahaffy and encase each part of her remains in concrete. Bernardo bought a dozen bags of cement at a hardware store the following day; he kept the receipts, which were damaging at his trial. Bernardo used his grandfather's circular saw to dismember Mahaffy. Bernardo and Homolka made a number of trips to dump the cement blocks in Lake Gibson, south of Port Dalhousie. At least one of the blocks weighed 90 kg (200 pounds) and was beyond their ability to sink. It lay near the shore, where it was found by Michael Doucette and his son Michael Jr while on a fishing expedition on June 29, 1991. Mahaffy's orthodontic appliance was instrumental in identifying her. Homolka was released from prison on July 4, 2005. Several days before, Bernardo was interviewed by police and his lawyer Tony Bryant. According to Bryant, Bernardo said that he had always intended to free the girls he and Homolka kidnapped. However, when Mahaffy's blindfold fell off (allowing her to see Bernardo's face) Homolka was concerned that Mahaffy would identify Bernardo and report them to the police. Bernardo claimed that Homolka planned to murder Mahaffy by injecting an air bubble into her bloodstream, triggering an air embolism. Kristen French During the after-school hours of April 16, 1992, Bernardo and Homolka drove through St. Catharines to look for potential victims. Although students were still going home, the streets were generally empty. As they passed Holy Cross Secondary School, a Catholic high school in the city's north end, they spotted 15-year-old Kristen French walking briskly to her home nearby. They pulled into the parking lot of nearby Grace Lutheran Church and Homolka got out of the car, map in hand, pretending to need assistance. When French looked at the map, Bernardo attacked from behind and brandished a knife, forcing her into the front seat of their car. From the back seat, Homolka subdued French