Former child actor Evan Ellingson's cause of death revealed

Evan Ellingson, 35, was an actor on "CSI: Miami" and the Cameron Diaz movie "My Sister's Keeper." He died of an accidental fentanyl overdose.

Ellingson, 35, was found dead in his bedroom in Fontana, California, on Nov. 5. 

His father previously told Fox News Digital that he had struggled with drug addiction for years, "but was doing really well recently so we are all in shock and devastated right now," Michael Ellingson said at the time.