Armand Sanguigni was born in 1951 to Italian immigrant parents and raised in what is now Mississauga, Ontario. In 1969, he joined the Toronto chapter of the Satan’s Choice Motorcycle Club, a prominent outlaw biker gang. Deeply immersed in biker subculture, Sanguigni quickly earned a reputation as a heroin addict and street-level enforcer. He was one of the early advocates pushing for Satan’s Choice to get involved in heroin trafficking—a highly controversial move within the club. He was close to fellow biker Ken Goobie, serving as his main courier and distributor.

Sanguigni worked as a hitman for the Cotroni crime family in Montreal, acting as a bridge between outlaw bikers and traditional organized crime. Described as loyal and feared, he was nicknamed “In the Trunk” because he frequently sold stolen goods, drugs, and counterfeit items from his car. Despite lacking any known legal employment, he owned a house in Toronto, which police suspected was purchased with profits from his criminal activities. His criminal reputation included burglary, drug trafficking, and suspected contract killings. He was also closely associated with Gerard Michael Vaughan, a violent rapist with whom he committed a string of robberies. Though Sanguigni refused to participate in sexual violence, his moral boundaries stopped there. He was suspected in at least eleven murders but was never charged with any apart from the high-profile Port Hope case.

On March 9, 1973, Armand Sanguigni murdered 21-year-old William Lee Graham, a key Crown witness in a pending drug trial involving Satan's Choice bikers. Graham was kidnapped from a Toronto motorcycle shop, beaten, and then dumped—still alive—into Rice Lake near Peterborough, where he drowned. Sanguigni later admitted the act to fellow underworld figure Cecil Kirby, who noted that Sanguigni complained the body should have been weighted more heavily. This killing was a clear message to potential informants.

Sanguigni’s most high-profile legal trouble came from the 1978 Port Hope incident. On October 18, 1978, he was one of eight Satan’s Choice bikers involved in a confrontation at the Queen’s Hotel in Port Hope that ended in the murder of biker William “Heavy” Matiyek. Sanguigni reportedly berated Fred Jones, a former Satan’s Choice member turned Outlaw biker, in the pinball room just before the shooting occurred. After the gunfire, Sanguigni fled the scene. He became the only one of the “Port Hope 8” to evade immediate arrest, staying underground until he was apprehended in January 1979. During the trial, waitress Cathy Cotgrave testified that she had seen Sanguigni with Jones in the pinball room before the murder. However, under cross-examination, inconsistencies in her testimony weakened the Crown’s case. On November 24, 1979, Sanguigni was acquitted of all charges, one of only two defendants to be cleared.

Five years later, on October 8, 1984, Sanguigni and his common-law wife, Katalin Dobrovolszky, were found dead in their west Toronto home. Both had overdosed on heroin. Though police suggested the deaths could have been accidental, suicide, or even homicide, the cause was never definitively established. Kirby believed it was a deliberate poisoning, while others like Lorne Campbell saw it as the tragic end of a reckless addict who routinely used dangerously high doses. Sanguigni’s death remains shrouded in suspicion, fitting for a man who had spent much of his life operating in the darkest corners of Canada’s criminal underworld.