15th, 2006. a surveillance camera in a casino parking lot captures a large group of teenagers walking past an employee who's sitting in the golf cart. at the bottom of the screen, one of the young men in the group stops and takes the worker's two-way radio. moments later, the employee is using his cell phone when one teen comes up from behind and sucker punches him. the attack is completely unprovoked. >> clearly, he didn't provoke them, as you can see on the videotape. that's what made it more senseless is the man was just going about his daily duties. >> the employee is punched over and over as others from the group join in, hitting and kicking him. >> it was definitely shocking to see the type of brutality that was going on on the tape. >> the employee, 24-year-old richard markwell, gets up and tries to run away.