SOURCE SPORTS: Former Dallas Cowboys RB Marion Barber Found Dead At 38 - The Source
Former Cowboys and Bears running back Marion Barber III found dead at Frisco apartment
Former Bears RB Marion Barber III dies at age 38 - Chicago Sun-Times
Dallas Cowboys: Marion Barber was a model running back
Ex- Cowboys RB Marion Barber found dead in apartment: report
Marion Barber was much more than a bruising football player
Former Cowboys RB Marion Barber III's death caused by heat stroke, per officials
Former Dallas Cowboys running back Marion Barber III dead at 38
Marion Barber III, Bruising Running Back for Cowboys, Dies at 38 - The New York Times