Mark Landon, the eldest son of legendary actor Michael Landon, has passed away. The actor, 60, was found dead in his West Hollywood home on Monday.
The Los Angeles County Sheriff's Department is still investigating and the cause of death has not been determined, but early reports do not suggest foul play.
Landon starred in three films, most notably the 1991CBS made-for-TV movie, Us, which was written and directed by his father. The elder Landon, a television mainstay on long-running series such as Bonanza, Little House on the Prairie and Highway to Heaven, died shortly after the film was made following a battle with cancer. He was 54.