TMZ broke the story, and it's now been confirmed by the LAPD. Haim, best known for roles in The Lost Boys and License to Drive, and later for the reality show The Two Coreys (with Corey Feldman, who was far less troubled than Corey Haim), was found in his apartment early this morning:
Haim died at 3:30 a.m. Wednesday of an apparent accidental overdose, according to the LAPD's North Hollywood Division.
He was found unresponsive at an Oakwood apartment, near Burbank, police said.
His mother was at the home at the time.
Haim had publicly struggled with drugs for years. He told a reporter in 2007 that he had been taking up to 85 Valium a day at the height of his habit. According to his personal website, a B-movie called American Sunset released in January "is being touted as Corey Haim's big comeback to movies."