Steve McNair
McNair’s story is one of the most tragic on this list and should serve as a warning to every young male athlete. The married quarterback had an affair with a young waitress. Sahel Kazemi believed that McNair was going to divorce his wife to be with her but the former Titans star had other ideas.

Then she lured the QB to a rented condominium where she shot and killed him before turning the gun on herself. Allegedly, the pair didn’t hide their relationship when they were in public together. But McNair wasn’t willing to dedicate his life to her so she took it from him in a terrible way (via Tennessean).