sounds to me he had just way to much in the gut. Not sure if the energy drinks would have done much to hurt but I dont know his size. I'm a big guy myself and I can down energy drinks left and right. Worst I have done was drank 2 Mana potions(label that i didnt see said to only drink 1 every 24 hours and had 1600% the daily of B6 and 6667% the daily B12 so times that by 2) 6 cans of Bawls G33k B33r G in about a 4 hour span.
After all that I still was pretty darn tierd. There is a site here that will tell you how much caffine it would take to kill you.
Focusing your life on only one path does nothing but close your mind to the infinite possibilities that surround us.
Think out side the box for the box is small, cold, dark, and doesn’t have cookies.