Turned pro, tested positive in 90 mr O, disappeared...
Not quite!!
Vince Comeford jouned the WBF, adopting the nickname "The Phoenix". He competed in the 1991 WBF Championship. The last time I saw him was on an episode of BodyStars, aired one week before the 1992 Championship.
At the show, however, the MC, "Mean" Gene Okerlund, announced that Comeford had pneumonia and would not be competing that evening. His routine in the entertainment round was supposed to be right before that of champion, Gary Strydom.
Instead, they simply played his "pre-film", consisting of a Native American telling a bunch of youngsters, around a campfire, about the legend of "The Phoenix". In the flames, while he's telling the story is footage from Comeford's 1991 posing routine.