It was pure dirtbag IMO
http://www.youtube.com/watch?v=6xAEetam6HQ
It's sad that maybe 20% of the hockey fanbase would view this as "part of the game"
He had the back of his jersey visible at all times. At the very worst, if you're making contact 3 feet from the boards you need to basically pick up and skate the guy into the glass ... you don't [censored] push down on his head