Lee Thompson Young died of one self-inflicted gunshot to the head

Sep. 3, 2013 at 2:29 PM ET

Actor Lee Thompson Young shot himself once in the head.
FilmMagic file
Actor Lee Thompson Young, 29, committed suicide last month.

Actor Lee Thompson Young, who starred in the Disney Channel children's series "The Famous Jett Jackson" and most recently was a series regular on TNT's "Rizzoli and Isles," died of one gunshot wound to the head, an autopsy has concluded.

Young, who was 29, was found in his home on Aug. 19, where he had committed suicide, a spokesman for the Los Angeles County coroner's office told NBC News on Tuesday. When the actor didn't show up for work on the TNT crime drama, producers called police.

Young starred on "Jett Jackson" from 1998 to 2001, and also played the role in a follow-up movie. He was nominated for two Young Artist lead actor awards for the role. Young also portrayed running back Chris Comer in the 2004 movie "Friday Night Lights" and appeared on other television shows, including "Smallville" and "FlashForward."