Wayne Boden

On 3 October 1969, Shirley Audette was found dead at the rear of an apartment complex in downtown Montreal, Quebec. Although she was fully clothed, she had been raped and strangled, and savage bite marks were found on her breasts. There were no signs of bloody skin under the fingernails of the victim, which led one biographer to theorize that she did not struggle against her assailant. One of Audette's former boyfriends told the police that he believed that she got involved with a very dominant, attractive man because she was "getting into something dangerous" but she never mentioned the man's name. Audette's boyfriend had been at work on the night shift, while Boden, who lived next door, met Audette outside the building where she sat when she felt nervous.

On 23 November, Marielle Archambault, a jewellery clerk, left work at closing time with a young man whom she introduced to her co-workers as "Bill", and remarked that she seemed happy and entranced by the man. When Archambault did not report for work the following morning, her employer went to check on her in her apartment to see if she was ill. Together with her landlady, they discovered her fully clad body on the couch. The room was tidy, but Boden had ripped her pantyhose and bra, raped her, and left bite marks on her breasts.

The police were able to find a crumpled photograph amid the wreckage of Archambault's apartment, which was readily identified as the mysterious "Bill" by her co-workers. However, despite this apparent break, the police were not successful in connecting the photograph to any known suspect, even through a police sketch based on the picture was distributed for publication in the newspapers. The photo turned out to be Archambault's dead father.

On 16 January 1970, Brian Caulfield, the boyfriend of Jean Way, 24, came to pick her up for a scheduled date at her apartment on Lincoln Street in downtown Montreal. When Way did not answer the door, he decided to come back a little later, but upon returning found the door unlocked. Caulfield found Way's naked body on the bed, with her breasts undamaged. Boden was most likely in Way's apartment when Caulfield was knocking at the door earlier that evening. An autopsy conducted by Dr. Jean-Paul Valcourt found two small fibers under the fingernails of her left hand, indicating that – contrary to prior belief – that Way had indeed struggled against Boden.[2]

After Way's death, the resulting publicity from the murders caused a brief mass hysteria in Montreal, although this disappeared as Boden had fled the city and the murders stopped.

In Calgary, Alberta, a 33-year-old high school teacher named Elizabeth Anne Porteous did not report to work on the morning of 18 May 1971. Her apartment manager was called, who found her body on the bedroom floor. As with Marielle Archambault, her apartment showed considerable signs of a struggle, and Porteous had been raped and strangled. Her breasts were likewise mutilated with bite marks. Amid the wreckage, however, the police recovered a broken cufflink under the victim's body. In their investigation of the murder, the police were able to find out from two of her colleagues that she was seen at a stoplight riding in a blue Mercedes-Benz on the night she died; the car was reported as having a distinctive advertising bull-shaped decal in the rear window. A friend of the victim also informed police that she had been recently dating a man named "Bill", described as a "flashy" dresser with neat, short hair.

The following day, on 19 May, the blue Mercedes was spotted by patrolmen, parked near the murder scene. Boden, a former fashion model, was arrested half an hour later as he went to his car. He told the police that he moved from Montreal a year previous and admitted that he had been dating Porteous and was with her on the night of the murder. When the broken cufflink was presented to him, he admitted its ownership. However, he insisted that Porteous was fine when he left her that night.

The police in Calgary were in possession of a copy of the photograph recovered from Archambaut's apartment and, as Boden resembled the man in the picture, they held him for suspicion in murdering Porteous. Police then turned their attention to the marks on the victim's breasts.

The police contacted Gordon Swann, a local orthodontist, to help prove that the marks on Porteous' breasts and neck were Boden's bite marks, with the intent to verify them as having been left by Boden. As there was nothing in Canadian literature on forensic odontology at the time, Swann wrote to the Federal Bureau of Investigation (FBI) in the United States, hoping for any information on the matter.

Swann received a reply from FBI Director J. Edgar Hoover, who directed him to England, where he met a man who had dealt with 20 or 30 cases regarding bite marks. Swann was able to get the information he needed and based on a cast made of Boden's teeth, he managed to demonstrate 29 points of similarity between the bite marks in Porteous' body and Boden's teeth.