Dusa was last seen between 2:00 and 4:00 p.m. on June 29, 2005 in the vicinity of the 5900 block of Elmwood Boulevard in Monroe, Michigan. He was staying with his estranged wife there, sleeping on her couch. They were going through a divorce. Dusa's wife came home at 8:00 p.m. and found their young son alone. The boy said Dusa had gone out for a bicycle ride. He left behind his wallet and keys. Dusa's wife stated he never went anywhere without them, and that he'd never gone on a bike ride before. The bicycle, a red Mongoose with a black pouch on front, is also missing.

Police believe Dusa may have left of his own accord. He was distressed over his failing marriage and money problems, and had mentioned the possibility to traveling to California. Authorities got a tip that he was alive and well and living in northern Michigan, but they couldn't verify this information. His case remains unsolved.