In 1993, Former AC/DC manager and singer/songwriter Chrispin Dye was robbed and assaulted in Sydney, Australia. After suffering traumatic head injuries, he died in the hospital at the age of 41. According to Rolling Stone, the murder has since remained unsolved for more than 20 years, but the New South Wales government has now offered $100,000 for information leading to the capture of those responsible.

“By all accounts, Crispin Dye was a fun-loving, friendly and decent man, who was robbed of his life far too soon,” Detective Superintendent Mick Willing, from the NSW police’s unsolved homicide team, said in a statement via the Guardian. “There are people out there who know those responsible for Mr Dye’s death and we’re hoping this reward may prompt them to get in touch with police.”

According to the Guardian, a witness saw three Pacific Islander-appearing men (either in their late teens or early 20s) standing over Dye’s body before running off. Dye was manager of the band for seven years and received a Gold record for his work on Fly On The Wall.