A MAN who stabbed his mother more than 30 times with a blunt samurai sword and knife has had his appeal rejected in the state's appeal court.
He will now spend at least the next 15 years behind bars.
Horace Lorenzo Lyken Jones, 22, was found guilty last year in Rockhampton Supreme Court of murdering his mother Roxane Gilbert, 38, at his Gladstone home on June 29, 2012.
Ms Gilbert lived in Bundaberg but had travelled to Gladstone to visit her son.
Her body was found the following day wrapped in a blue tarp in the backseat of her car which had been dumped in bushland near Gladstone.
Ms Gilbert's hands had been zip-tied behind her back and her head had been covered with a plastic bag.
The court heard Ms Gilbert had at least 17 wounds to her head and neck from the frenzied attack.
Jones appealed his murder conviction in the Queensland Court of Appeal on the grounds a miscarriage of justice had occurred.
He claimed the trial judge erred in not allowing a defence psychiatrist to give expert opinion about the violent and abusive manner in which Ms Gilbert acted towards her son over a prolonged period, especially when she had been drinking.
But the Court of Appeal disagreed.
Justice David North, in handing down the court's decision on Tuesday, said the trial judge was correct in not allowing the evidence on the grounds it was commentary, or opinion, not expert evidence.
He said a jury, directed properly, could draw its own conclusions about the relationship between mother and son, even if they had not been personally exposed to the type of behaviour and experiences outlined during the trial.
- APN NEWSDESK.
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