I am convinced now that the shot was last. Someone posted earlier (not sure who, I've been on here all dang day) that if the bullet casing had bounced or moved, it would have blood on it proving it has rolled or bounced. It didn't. It was on top of a pool of blood. Proof to me that he was shot last because there was already blood on the floor.
never have understood this, the whole act from start to finish took a minute and a half give or take a few seconds, hardly enough time for a pool of blood to dry.