My Life Through Heaven and Hell,' Sum 41's Deryck Whibley recalls the former couple's relationship was "based on sex, drugs, booze and partying."

Throughout the pages of “Walking Disaster,” Whibley describes a fraught and frightening relationship with Sum 41’s first manager, Greig Nori, whom the singer alleges groomed and sexually and verbally abused him for years, starting when he was 16 and Nori was 34.

Deryck Whibley of Sum 41 is opening about the sexual abuse he allegedly suffered during his relationship with the band's former manager, Greig Nori.