Wouldn't it also, though, take more effort to shoot oneself with a shotgun? So much so that "setting it up" would have necessitated it even being noticed and obvious by people who were not standing that far away from him?
Yep, I would think it would be something that would take a bit to manuever into place — especially after being shot three times! It wouldn’t seem like there was enough time to accomplish this without someone seeing him, or recognizing that the shotgun had been fired, and/or hearing the shotgun blast (which is much different than a handgun) — even if he did manage to turn a corner — Very odd, IMHO. There is also some mixed information on exactly what type of “long gun” he had. The first report I read said M-16, then “assault rifle”, then as someone else mentioned “AK-47”, now a “shotgun”... Very odd...