The assailant and his gf were standing the whole game. The older gentlemen were telling them to sit down and they were being jerks. The kid that punched the old man was calling him a hick geriatric f$&@ & fa$&ot then when the old man was telling to sit down he popped him.
I dont know if I could have sat there and watch it unfold without stepping in. Had a similar incident like this at MetLife stadium in 2013. There was a group of older drunk men about in the age range of 45-60, they were picking on this girl and her bf that were Bills fans. My buddy and I finally stepped in and said something, then they directed their attention to us and actually followed us back to my truck after the game nothing but all talk. But, sometimes its ridiculous how people fight at a game.