Former Dallas Cowboys running back Marion Barber III has died at the age of 38, the team announced Wednesday.

Frisco, Texas, police found Barber dead in his apartment Wednesday, per the Fort-Worth Star Telegram. The cause of death is not yet known.

Barber, who would have turned 39 on June 10, was drafted by the Dallas Cowboys in the fourth round of the 2005 NFL Draft. Barber spent seven seasons in the NFL, six with the Cowboys from 2005-2010 and one with the Chicago Bears in 2011. He made the Pro Bowl in 2007 while with the Cowboys.

He finished his career with 4,780 rushing yards and 53 rushing touchdowns to go along with 1,330 receiving yards and six receiving touchdowns. 

In his post-football life, Barber dealt with legal troubles. Police detained Barber in 2014, an incident that resulted in him going to the hospital for a mental health evaluation. In 2019, he was arrested on two misdemeanor criminal mischief charges.