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.

British guitarist John Sykes, best known for his work with rock bands Thin Lizzy and Whitesnake, has died aged 65 “after a hard fought battle with cancer,” according to a statement on his website.

John Sykes, the guitarist whose talent helped propel Whitesnake to success, is dead at 65. He also worked with the bands Thin Lizzy and Blue Murder.