Four killed at heavy metal concert

A gunman charged on-stage at a nightclub in the United States and opened fire on the band and crowd, killing top heavy metal guitarist “Dimebag” Darrell Abbott and three other people before a police officer shot him dead, authorities said.

The gunman had a hostage in a headlock and appeared to be preparing to kill him when the officer shot him in the face with a rifle, a witness and police spokesman Sgt Brent Mull said.