Yeah the crime scene photos I've seen don't show nearly that much brass. And in the picture of his dead body, I am trying to figure out something. Above his head on the floor there is a revolver with blood on it, and a trail of blood leading to the larger pool around his body. This implies the revolver was the gun he used to off himself. Look on top of the revolver, laying on it right above the trigger. Is that a spent .223 case? How would that get on top of the revolver if he was already dead? Unless someone else was still firing in the room?
I won't post the photo since it's graphic, but it's easy to find.