not so sure he was the last person. the last person was the murderer of the girls. but, i wonder where the bodies were located. everyone in same room? or different rooms? guessing here but it seems that the gun was nearest to nichol. which could mean it was murder/suicide or murder and staged to look like murder/suicide. there could be a lot of relationship dynamics to sort out. to date we know of nichol and the fathers of her 2 girls [each girl had a different last name] nichol and the father of her son [i think son had different last name than either girls] and nichol and the current bf. so if i counted right that's 4 nichol relationships that the males could possibly have something to do with these deceased women. or, nichol did it herself. just some thoughts, all of them only my opinion.