[Right_Wing_Madman]

He checked in at 4am, just hours after he and his parents had an intense argument at Conan O'Brien's holiday party

Almost all these arguments have to do with money. The Reiners probably told him at the party that support was cut off, because they knew the money was funding his drug habit. Kid freaked out because he didn't know how he was going to get his next hit.

[tina07]

That’s the first thing I did when I heard about the murders, looked up if any of his kids had drug problems and sure enough....