A witness on stage last night at a heavy metal concert in Columbus says the man who killed four people was targeting the band's guitarist. The witness says the shooter ran on stage and dodged several members of the band Damageplan before taking aim at 38-year-old guitarist "Dimebag" Darrell Abbott. Joe Dameron was standing no more than 10 feet away when the shooting started. He says the shooter grabbed the guitar player with one hand and fired his gun with the other. Dameron says he thought it was all part of the stage show until he saw blood on the stage. He says the shooter was yelling something as he ran toward Abbott.