Nori has filed a notice of action against Whibley and Simon & Schuster, the publisher of Whibley recent memoir. Whibley responded with his own legal notice, accusing Nori of defamation.

Sum 41's Deryck Whibley and his former manager have taken legal action against one another over sexual abuse claims.

Deryck Whibley stopped his band mid-song less than half way through Sum 41’s concert at the Saddledome Thursday night.

Greig Nori is suing Deryck Whibley for libel over sexual abuse allegations, while Whibley counters with his own defamation ...