A NSW man who went on an hour-long shooting rampage that killed his neighbour has been found guilty of murder.
Bradley Jason Mark White, 42, fired more than 200 bullets from his home and front verandah into at least four homes and eight cars as worried neighbours ducked for cover in the Wyong street on the NSW Central Coast.
Byron Tonks, 20, was struck in the upper body as he sheltered with family in the front living room of his home, where White aimed most of his fury.
While White did not deny killing Mr Tonks, his lawyers argued he had a mental health impairment from a traumatic childhood and a head injury he sustained in 2000.
But a Newcastle Supreme Court jury did not agree, finding White guilty of murder on Friday after about four hours of deliberation.
White, whose March 2020 attack injured two other people, was also found guilty of two counts of shooting with intent to cause grievous bodily harm and four counts of shooting at a dwelling with reckless disregard.
A forensic psychiatrist and a forensic psychologist told the court that White did have some mental health impairments but knew the nature and quality of the act, and knew the act was wrong.
He may have appeared psychotic to a lay person but "of course, the nature of psychotic phenomena is often misinterpreted by lay people," Dr Kerri Eagle said.
"He's reported taking what, from my experience is, quite a lot (of ice) over that short period of time."
Another forensic psychiatrist said the ice - said to be up to one gram on the day of the incident - wouldn't have had an effect on him.
His mood had been unstable in the weeks before the March 17 shooting, shown by irrationality and paranoia towards his neighbours.
His brain was already in an "inflamed" state and only an antipsychotic drug and time could bring him back to normal, Dr Richard Furst said.
White will face a sentence hearing on December 13.
