Diff'rent Strokes Star's Son Commits Suicide Lambert shoots himself 11 years after Plato OD By Rob Quinn, Newser Staff Posted May 13, 2010 2:53 AM CDT 3 comments Comments Tyler was 14 when his mother died of a drug overdose. Her death was ruled a suicide after an inquest. (rizalittle) (Newser) – The curse of child stars appears to have hit a second generation. Tyler Lambert, 25-year-old only child of Dana Plato, who played Kimberley on the popular sitcom Diff'rent Strokes, killed himself with a shotgun last week. The suicide just before Mother's Day came 11 years to the day after Lambert's troubled mother committed suicide with a drug overdose, ABC reports. His grandmother told People he had been experimenting with drugs and alcohol.