In case you want to learn more about this case, here is the (extremely lenghty) judgment: http://www.austlii.edu.au/cgi-bin/viewdoc/au/cases/nsw/NSWSC/2020/926.html
Honestly, I'm shocked. Just think about this: five bombings took place in 18 months, including three targeting the judiciary and one targeting a church, but the police investigation was effectively stopped just two years after the latest bombing, in July 1987, and "[n]o further substantive investigations occurred until July 2013, when a decision was made by the Officer in Charge of the Unsolved Homicide team to commence a further investigation". Perhaps this 26-years-long delay wasn't entirely unreasonable, but it doesn't seem to be entirely reasonable too.
And as the result, the case against Mr Warwick was pretty weak. His bloodstains were the only strong evidence against him. He was convicted of five crimes other than the Kingdom Hall bombing just because he had motives and no alibis. There was no proof of "any qualification or experience in dealing with explosives", the bombs had little in common, and despite at least four searches in the defendant's house conducted between 1980 and 1985, literally no physical evidence was found linking him to the crimes.
To be fair, the judgment isn't unreasonable and makes sense but it seems to me that the defendant's guilt hasn't been proven beyond a reasonable doubt in respect of every charge. I still hope justice really has been served in this case, and he hasn't been wrongly convicted on any count..