Lee Thompson Young, star of Disney Channel's late-'90s show The Famous Jett Jackson, has died at age 29.

TMZ reports that Young's landlord found him dead Monday, apparently from a self-inflicted gunshot wound:

Young currently appears in the TNT show "Rizzoli & Isles" -- and we're told when he didn't show up to work this morning, staffers called the landlord of Young's L.A. home to check up on the actor.

Young's publicist confirmed to TMZ that the actor "tragically took his own life," calling Young "a wonderful and gentle soul who will be truly missed."

Young got his start on the Disney Channel at age 14, starring as Jett Jackson in a series and made-for-TV movie from 1998–2001. He later had roles in the 2004 movie Friday Night Lights and the 2009 TV series FlashForward. He appeared in a story arc on Scrubs before landing a regular spot on Rizzoli & Isles in 2010.

Rizzoli & Isles creator Janet Tamaro confirmed the news on Twitter: