Vinz suddenly arrives .
Vinz 's gun Vinz him to break up the fight ; all the skinheads flee except one ( portrayed by Kassovitz himself ) whom Vinz is about to execute in cold blood .
Vinz suddenly arrives , and his gun allows him to break up the fight ; all the skinheads flee except one ( portrayed by Kassovitz himself ) whom Vinz is about to execute in cold blood .