Marion Barber III, a former NFL star running back for the Dallas Cowboys and Chicago Bears, died of heat stroke in June, officials revealed Monday.
Frisco, Texas, police said the Collin County medical examiner ruled the 38-year-old’s death an accident. Police did not elaborate on the former running back’s death.
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Barber was found dead on June 1 after police were called to make a welfare check at a Frisco apartment that he was believed to be leasing. According to TMZ Sports, officials said the thermostat in his apartment was set at 91 degrees and the heat was set to “on.”
Investigators noted Barber had a history of working out in “sauna-like conditions.” Police said there was no evidence of trauma or a drug overdose.
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Barber was a fourth-round draft pick of the Cowboys in 2005 after starring at Minnesota. He was named to a Pro Bowl in 2007 after recorded 975 yards and 10 touchdowns. He would join the Bears in 2011 but called it a career soon after that season.
In 99 career games, he recorded 4,780 yards on the ground and scored 53 touchdowns.
In June, Dallas said it was “heartbroken” to learn of Barber’s death.
“We are heartbroken by the tragic death of Marion Barber III,” the team said at the time. “Marion was an old-school, hard-nosed football player who ran with the will to win every down. He had a passion for the game and love for his coaches and teammates. Our hearts go out to Marion’s family and friends during this difficult time.”
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The Bears added: “We are saddened to learn of the passing of former Bears RB Marion Barber III. Our hearts go out to his family & friends.”
The Associated Press contributed to this report.