He died in hospital later that day.He was survived by his wife, Helen, and son, Maurice Ward, who went on to become a Redemptorist priest in Australia.
The investigation summary outlined the police case against Mr Woods, the brother of Helen Ward.
Police believed his motive was anger at his family's continued association with his estranged wife.
Family members described Mr Woods' deteriorating mental health, and that he had made threats against Mr Ward and his son in the weeks leading up to the bombing.
Despite the police belief that "suspicion attaches to one person only", they were never able to gather enough evidence to make an arrest.
Mr Woods has since died.
Detective Senior Sergeant Kallum Croudis, now responsible for the Ward file, said there was work under way on the case.
"I have an investigations support officer who used to be a police detective, looking at a couple of things on the Ward file for me as we speak. They may be dead ends, and we've had lots over the years but, you know, something might bear fruit."
There was still potential for some forensic testing, but a lot of potential evidence had been lost due to the nature of explosive devices, he said.
People had also come forward over the years to suggest potential suspects.
"People have said 'Oh my uncle', or 'My father' or whatever, he was in the war, or he had a gripe, or some underlying potential motive. Those are all looked at.
There's no beacons involved, if I could be so bold, but there are things that are still being worked on."
