Wanted you guys to see this.

[MachNU]

Let's see, he walked into their dojo of his own accord, was calm and collected enough to take time to make his claims, and fought on his own. No one forced him into that situation. Looks like he expected to walk into their dojo, pick a target, show off, and beat up one of the students. I'm not surprised by the outcome at all.
He didn't seem too mentally challenged, just plain ignorant.

It not a criminal act if someone comes inside your place with the purpose of attacking. He just picked the wrong place. As long as you don't stop and restart, it is legally self-defense.

Wrong. What was on that video was in every way criminal. There have been many cases over the years where people went to jail over fights for use of Exsessive Force. Someone who is a trained Marine AND a black belt in Karate, is a highly trained weapon. That video shows someone who was either handicap, or under the influence. THey should have never had him in a fight in the first place. Even more so when right before he put him on the ground the guy yeilded to him, and admitted defeat. Past there it was pure murder, IF the guy did live!