Wonder why the mattress didn't show any fluids when LE checked out RF apt? They noted no sheets in apt but what was the condition of mattress? I wondered if he was taking her and the mattress down the stairs when neighbor heard loud noises? LE hasn't stated that I'm aware of anyway that the mattress was missing. Guess I'm thinking that he killed her in bed but could have been somwhere in apt...
Maybe he had one of those plastic mattress covers on his mattress. That would have been disposed with the sheets.