The 73-year-old was found guilty in the NSW Supreme Court in July of 20 offences relating to six Sydney events between February 1980 and July 1985.
They included the shooting murder of Justice David Opas and the bomb-related murders of Pearl Watson, wife of Justice Raymond Watson, and Graham Wykes, who died in an explosion at a Jehovah's Witnesses hall.
Graham Wykes died and 13 people were seriously injured when a bomb ripped apart the Jehovah's Witnesses hall. Congregation members had offered support to Warwick's ex-wife.
Full article: https://www.dailymail.co.uk/news/article-8692961/Family-court-bomber-Leonard-Warwick-spend-life-prison-guilty-Sydney-murders.html