Former Cowboys, Bears RB Marion Barber III's death caused by heat
Saddening details of Marion Barber's death, revealed
Former NFL Running Back Marion Barber III Cause Of Death Released
Former Cowboys Star Was Warned About Marion Barber - The Spun
Marion Barber Mourned By Former Dallas Cowboys After Death
Ex-Cowboys RB Marion Barber III found dead at 38: Report
Officials: Ex-Cowboys RB Marion Barber died of heat stroke
Ex-Cowboys star Marion Barber III died of heat stroke and
Former Dallas Cowboys Running Back Marion Barber Dies At 38
Report: Marion Barber cause of death revealed as heat stroke - On3