Posted that earlier, actually.
The ambulance-chasing lawyer (forget the name) says that the murderer 'left it' in the victims room (what a load of bollocks that is), and said the 'no-connection' stories were made up. Presumably by the police, then.......
http://ps2.ign.com/articles/536/536062p1.html?fromint=1
IGN: Fair enough...
Thompson: By the way, the reports that the game belonged to the victim are false. Somebody in a gaming magazine in Scotland or England put that out. That's false. The game belonged to the murderer.
IGN: To the kid that killed him?
Thompson: Yeah, he left it at the house of the victim. It wasn't the victim's, it was the killer's. There's corroboration of that from other sources.*
IGN: How did the killer get the game in the first place?
Thompson: I don't know, but he had it.
(*the victims family who are committed to cashing in with a hefty lawsuit, I'd wager)