[MadisonA]

What happens if the cops do have some forensic evidence but it doesn't match Ricci because his buddy (the mystery guy at the phone booth) was the one who entered the house and maybe he was in the Jeep too.

Then the cops would need to find mystery guy, which I don't think the cops know where he is or who he is at the moment to compare the some evidence with.

[mystery-ak]

well the mystery buddy would have to have been in the house before or at least know the layout of the house thoroughly, since he would be moving in the dark.....if he's the guy they will have to offer something to Ricci to make him talk....