Dazza is the younger brother of Irwin Dundee. He helped his brother in crime and filming Bondi Beach. Recently, he had become more involved with Irwin's weed business and there were plans to give him keys to the house. However, after a confrontation between Irwin and Eugene ending in Eugene and Mel being stabbed, Dazza decided to rescue them with Buck and not tell his brother. After Buck told Irwin what happened, Dazza has gotten on his brothers bad side, with Irwin disowning Dazza even though he doesn't know it yet.
Returning to the city after several months Dazza got kidnapped by Irwin who took him to the Tataviam Mountains where he was shot by his very own brother. Afterwards Irwin drove him down to the Del Perro Pier and carried the body to the lower end of the pier and dropped Dazza in the ocean, sending him one last time.
However, Dazza did in fact not die and survived the attempted murder. Dazza is now back in Los Santos, fueled by hatred and anger towards his brother and is now after his blood.