ARLINGTON, TX - NOVEMBER 25: Marion Barber #24 of the Dallas Cowboys warms up before a game against the New Orleans Saints at Cowboys Stadium on November 25, 2010 in Arlington, Texas.
The Saints defeated the Cowboys 30-27. (Photo by Wesley Hitt/Getty FRISCO, Texas - Doctors say the death of former Dallas Cowboy Marion Barber last month was caused by heat stroke.Police found the troubled ex-running back dead in his Frisco apartment on June 1.
The high temperature that day was 89 degrees.LINK: Former Dallas Cowboys RB Marion Barber has died, Cowboys sayTMZ Sports reports Barber was found in his apartment with the heat on at 91 degrees.