DENVER (AP) —An autopsy report shows that former Heisman Trophy winner Rashaan Salaam killed himself after struggling with depression. The 42-year-old was found dead Dec. 5 in a park near the University of Colorado, where he played from 1992-1994.

An autopsy by the Boulder County Coroner's Office confirmed that Salaam died of a self-inflicted gunshot wound to the head. Investigators found a note at the scene. They also noted in the report that Salaam's family said he had a history of depression and "recent life stressors."

Investigators will never know whether the one-time running back suffered chronic head trauma from playing football because his family did not consent to those tests.