9news.com.au | Sydney killer gets minimum eight years Sky News Australia The man who helped kill Colleen 'Debbie' Ayers has apologised in court to her parents for being a 'coward'. 'I should have run for help or called the police but I didn't,' Michael John Duffy told them after he was sentenced on Friday to at least eight ... Micheal Duffy jailed for helping girlfriend to kill sex partner Colleen Ayers Sex romp killing: Michael John Duffy jailed for at least eight years over ... Sydney killer's sorry 'too late': family |