Becoming inspired by the Arnold Schwarzenegger movie Pumping Iron, and already a weight training enthusiast, O'Toole was encouraged to compete in bodybuilding because of his impressive genetics[citation needed].
Unwilling to engage in heavy drug use to put on the extra mass to compete as a professional[clarification needed], O'Toole retired from bodybuilding competition after the 1996 North American championships and began pursuing a career as a personal trainer.
[citation needed] Today, O'Toole owns and operates KO Fitness, a facility located in his home town of North Vancouver, where he continues his profession as a personal trainer.
[4][citation needed] In 1998, he began training with British Columbia mixed martial arts pioneers, Chris Franco, Lance Gibson, and their World Class Team.
[citation needed] As of 2024, O'Toole maintains an active presence on "X"[5] posting far-right, homophobic and anti-immigration material that is often limited for violating rules around Hateful Content.