Former NFL player Marion Barber III died from a heat stroke in his suburban Dallas apartment amid a record-setting heat wave sweeping across Texas, according to the Collin County medical examiner’s office. Barber was discovered by police in his apartment in Frisco on June 1 underneath a running shower, and it is believed he was there for a number of days based on the decomposition level of body. The Collin Country medical examiner’s office has ruled Barber’s death to be accidental.