A 21-year-old man found dead by the side of a road after a night out in Broome 16 years ago was likely bashed to death, a coroner has found. Exactly who killed Josh Warneke has remained an enduring mystery since the man jailed for his killing, Gene Gibson, was acquitted on appeal. While coroner Ros Fogliani found Mr Warneke was likely murdered, she was unable to identify the person responsible.