John Sykes, a guitarist who played with Thin Lizzy before joining Whitesnake for its smash 1987 album and later forming Blue Murder, has died of cancer at 65.

John Sykes, guitarist with Whitesnake and Thin Lizzy who co-wrote the hit singles 'Still of the Night' and 'Is This Love,' has died. He was 65.

Yesterday (January 20), it was announced that John Sykes – a hugely influential mainstay of '80s hard rock guitar who had stints in Whitesnake, Thin Lizzy, and Tygers of Pan Tang – had died at 65.