NSW rampage killer to be supervised

A killer who shot five people in a Sydney rampage after being called a "dole bludger" by one of his neighbours will be subjected to a further five years supervision.

Paul Anthony Evers poses an unacceptable risk of committing a serious violent offence if not kept under supervision, Justice Stephen Campbell said at the Supreme Court on Thursday.

Evers, now 60, was in 1992 sentenced to a maximum 25 years in prison over the 1990 Surry Hills killings, after being charged with five counts of murder but convicted of manslaughter, with his criminal responsibility reduced due to severe mental health issues.

Under the order he will be required to wear an electronic monitoring bracelet and adhere to a curfew, among other conditions.

On the morning of August 30, 1990, Evers, who has a chronic schizophrenic illness, armed himself with a shotgun and went on a "shooting rampage" at the Surry Hills social housing complex where he lived, court documents state.

He believed his first victim had called him a dole bludger, but the court found this was probably a delusion.

Evers' second target was his half-sister Michelle Coleman.

"He had been living in an illicit intimate relationship with her for a period of time," Justice Campbell said.

"She lived in fear of him and had decided to leave him on the very day that the killings occurred."

It's believed Evers was aware of her plans and bought the gun to force her to stay with him.

"After killing Ms Coleman, Mr Evers donned a balaclava and happened upon another resident... whom he shot for no discernible reason," Justice Campbell said.

Evers then heard noises from a flat upstairs and thought the occupants were taunting him.

"He kicked and shot open the door, entered and shot (two more people)," Justice Campbell said.

After killing five people he went to a shop, bought a soft drink and cigarettes.

"Having refreshed himself he returned to the scene of his crime, surrendering himself to attending police," Justice Campbell said.

The court has imposed a total of 47 conditions on Evers' extended supervision order, including provisions that restrict travel and ban him from gambling and drinking.

"I infer that unmedicated he is likely to decompensate rapidly into a dangerous psychosis, posing a high risk of serious violence to members of the community," Justice Campbell said.