Jeremy didn't bother " wiping " any of his tracks. He didn't seem to bother/worry that he'd allegedly killed 5 people that he may have just left some sort of a clue,anything. He even handed over the keys to the place without first going in and checking,though it's been said that this created a diversion of sorts to make it look as though he hadn't been there since he left for home on the night of the tragedy.