It’s almost unspeakable. Back in 1999, Dana Plato, who played Kimberly on ‘Diff’rent Strokes,’ died at age 36 of an overdose of medication. Now almost exactly 11 years later–and also around Mother’s Day–Plato’s son, Tyler Lambert, 25, had committed suicide, People reports. 

According to the article, Joni Richardson, Lambert’s grandmother and Plato’s mother-in-law, said that Lambert "a cameraman and amateur songwriter, had long struggled with his mother’s premature death…"