Hey man, as you know, I'm the banning admin in this situation.
First and foremost, not only did you say this, but so did @Darkfire. How the story was told was the victim told someone of your faction to "take off their shoes," and you identified it as a mugging. However, I asked for a clip for proof and you were unable to provide anything for me. How I explained to your friend, Darkfire, in your situation you are not allowed to escalate a verbal confrontation into murder without an active imposing threat or multiple warnings be handed out first, i.e the guy is threatening you while pointing a gun at you. In the clip, you were walking down Chinatown with your friend and your AK out, and the victim stated, "Do you own him or something" and that is when you decided to kill him without any type of warning. Nowhere in the clip was he imposing an active threat or warned. I issued a 12 hour ban due to your past offenses of RDM.
If you simply killed him during the alleged mugging, the possiblity of RDM would've been disregarded and the person would've been PK'd. But you had no proof to back any of your claims.