I read it as a guy took a puck off the ankle, and say "Crap, wtf dude... ill f you up". That happens almost every time I'm on the ice. then guys go after the puck and continue to the play.Trying to get him in trouble?...miscommunication?
Did you even read the OP?
The guy threatened to kill him, OP also tried to squash it through email. The guy is a problem. It sounds like you either have to get him thrown out or find another rink.
Other than that, the guy hasnt done anything in 2 decades, other than being a grumpy rink rat.
Ignore it and move on. The OP keeps poking the bear, when he admitted himself it was over until he ... went to the rink, emailed him, yadda yadda.
Sometimes the path of least resistance works. Ignore and move on. And maybe he can make another thread in 20 years.
"This guy threatened to kill me, I'm scarred!"
"Fight him!"
great advice, kid