Guay worked as a policeman who was skilled in judo. He gave wrestling a shot and worked in Montreal and the Maritimes. In 1975, he made his debut in Japan for
New Japan Pro Wrestling. He also worked in Los Angeles where he became
The Hangman and in Calgary for
Stampede Wrestling. In 1978, he made his debut in Memphis as Jean Louie winning the tag team titles with
Jos Leduc. In 1979, he made his debut for the
American Wrestling Association in Minnesota and became the
Super Destroyer Mark III teaming with
Super Destroyer Mark II and managed by
Lord Alfred Hayes. In 1980, he made his debut in the
World Wrestling Federation being managed by
Freddie Blassie. He defeated
Rene Goulet at
Showdown at Shea event. Hangman feuded with WWF Champion
Bob Backlund,
Andre the Giant,
Pedro Morales and
Bruno Sammartino. He left the WWF in 1981. After WWF, he worked in Montreal for
Lutte Internationale where he was a major star until the promotions shut its doors down in 1987. He retired from wrestling afterward. ==Personal life==