Complex sentence: Erik Brødreskift was the best friend of Kanwulf from Nargaroth, a former member (drummer) of the bands Gorgoroth, Borknagar and Immortal, committed suicide on October 4th 1999 of a pill related overdose.
Split into simpler sentences: Erik Brødreskift was a member (drummer) of the bands Gorgoroth, Borknagar and Immortal. He committed suicide on October 4th, 1999, of a pill related overdose.