i would say they made a reasonable attempt to flee the situation and it didnt work. they pulled over and the guy tried to run over the one guys bike...after pushing it out of the way, both parties had words and then the guy went into his truck and grabbed a weapon...at that point, i think they would have been justified to shoot him...im no lawyer, but i dont see it going differently than that....if they had just jumped off the bikes and shot him, that wouldnt fly...but once he grabbed that weapon (although the argument could be made that the truck was a weapon too), game on. i would say if they had stopped on the spot it would be worse because they did nothing to try and escape the confrontation