Johnny Manziel Throws Water Bottle at Heckler During AT&T Byron Nelson Golf TournamentJohnny Manziel Throws Water Bottle at Heckler During AT&T Byron Nelson Golf TournamentManziel had been turning down autograph requests from an 18-year-old fan for about two hours. Then, the fan made a comment that set Manziel off.BrannsonBrannson