More likely just an a-hole with a very large chip on his shoulder.
From the article:
Michael McBain had just returned home to his Capitol Hill condo with his wife when two steps inside, a complete stranger beat him unconscious.McBain was punched in the head and kicked in the face. "There was a big guy standing there, sort of blocking the door. And I guess I must have brushed past him," he said.
The beating of this man reminds me of the beating of Justin Barker at Jena High School, Louisiana, in 2006.