https://m.youtube.com/watch?v=uOpKsZz-eVA

Jamie Dlux found something important in the Heather O’Rourke case. Alphy Hoffman (Soda Pop Club) is the son of Bobby Hoffman, the casting director of Happy Days. Bobby Hoffman is the link between the Heather O’Rourke case and the Corey Haim case.

Meaning Bobby Hoffman is one of the culprits.