This sounds like the guy was heading to go into the stadium but for whatever reason, the bomb strapped to his body detonated.
Why else would someone do this? Maybe he had second thoughts about it and just decided to off himself instead before he got into the stadium.
I think a major disaster was averted here for whatever reason.
I'm assuming this is a "before" picture?
I have this theory that anyone who has the tops of his ears below a straight line intersecting at least the midpoint of a line through his eyebrows is mentally deficient; check it out against the pictures you see posted of life's losers.