I've read since my post that the tee has an eagle, rather than a gun, on it. My first thought was that he'd screwed up, because someone would recognize that tee. After reading about the winds, I've changed my mind completely. That was probably the one and only time that tee was worn, IOW, another red herring thrown in. The winds and the entire operation probably take it out of the class of the ordinary expert sportsman. It begins to smell more and more of a trained sniper, probably from a military background. Like a pro sniper, once he saw what his one shot did, he had no reason to hang around to see if a second were needed. He dropped the gun, put his gloves in his pocket and bugged out. I can guarantee you that the FBI is examining this angle right now...