The Perth father who stabbed his son Matthew Fisher-Turner to death before watching the AFL grand final has been sentenced to a minimum of 18 years in prison.
Ernest Fisher, 67, stabbed his 23-year-old son to death in October 2013, and left his two children to dispose of their brother's body while he went to a friend's house to watch the AFL grand final.
Matthew's body was found four weeks later, when suspicious friends reported him missing to the police.
Mr Fisher had claimed that he stabbed Matthew in self-defence of himself and his children.
The two children have also been jailed for the murder as accessories after the fact.
Joshua, 28, was sentenced to four years, while Hannah, 21, will serve three years and eight months.
Ernest Fisher received life in jail, with a minimum of 18 years.