Why would he want to murder them? (I’m not arguing with you....I don’t know much about the story) Did he have a route to the money or something?
It’s a very complicated story. ANS’s son died of a drug overdose while he was with Stern and his mother in the hospital after the birth. The boy had no history of of drug abuse.
He had the baby and claimed himself to be the father and caretaker of the money.