Vigilante justice is wrong even if the perv deserves it..
There is not enough information in the article or video to determine why the guy was trying to get into the restroom in the first place. There is a good chance that he might not have had any idea that the restroom was even occupied and just thought that the door was jammed. Maybe he had an intestinal issue and was desperate to get to a toilet. We don't know. I am assuming that if the security guard thought that the guys intent was to molest a teenage girl that the police would have been called.
Judging from the tape of the girlfriend I am going to take a wild guess that the a$$kicker was being egged on by the two women as he kicked and stomped the other guy to death. Is this trio, the group commenter here would want to decide their fate if they did something that this trio determined was inappropriate?
I normally would be upset if picked for jury duty...not in this case..