Background
In April 2025, police received a report of a sexual assault involving a woman who met a man through a dating app. The woman had communicated with the suspect through online dating platforms such as Facebook Dating, Bumble and Tinder. The woman was later invited to the suspect’s home where investigators believe the suspect drugged and sexually assaulted her.
William McMullin was arrested on March 17, 2026, and charged with multiple criminal charges. At the time of his arrest, police had confirmed four adult, female complainants.
Following a news release issued by the Edmonton Police Service (EPS) on March 25, 2026, five more women came forward. As a result, an additional 10 criminal charges have been laid – 22 in total – have been laid. These charges include sexual assault, administering a stupefying substance, assault with a weapon, voyeurism, assault, mischief under $5,000, intimidation, unlawful confinement and criminal harassment.
Investigators believe that McMullin may have offended in both Calgary and Edmonton.
“We know that coming forward can take immense courage, and for many people, it may take time,” says Staff Sergeant Brian McGuigan of the EPS Sexual Assault Section. “If you believe you were harmed, you are not alone. Our investigators are committed to approaching every report with compassion, dignity and care, and we encourage anyone with information, no matter how long ago the incident occurred, to reach out.”
McMullin remains in remand at this time. His next court date is scheduled for May 22, 2026.
Image: William McMullin, 56
Anyone who believes they may have been victimized by McMullin is asked to contact the Edmonton Police Service at 780-423-4567 or #377 from a mobile phone or the Calgary Police Service at 403-266-1234.