The Cowboys received terrible news last month when former running back Marion Barber was found dead in his apartment in Frisco, Texas.

Barber’s cause of death has been unknown up until this point. However, on Monday it was revealed that Barber died from a heat stroke according to the Collin County medical examiner in Frisco.

Barber was drafted by the Cowboys in the fourth round of the 2005 NFL draft. It didn’t take long for Barber to build a reputation as his bruising and physical running style brought a different element to the Cowboys’ offense.

2007 was the most significant year for Barber with the Cowboys. Although he didn’t log a single start, Barber rushed for 975 yards and 10 touchdowns and garnered Pro Bowl honors in the process. That was also the same season in which Barber had arguably the greatest two-yard in NFL history against the New England Patriots.

After six seasons with the Cowboys, Barber played his final season in the NFL with the Chicago Bears in 2011. For his career, Barber rushed for 4,780 yards and 53 touchdowns while averaging 4.1 yards per rush.

Barber only reached the age of 38 which is a tragedy. However, he made a huge impact on the Cowboys’ organization and football fans everywhere, and he won’t be forgotten.

Feature image via Mark Hoffman / USA TODAY NETWORK