Man jailed 17 years for mum's murder

A man has shouted in court that his own jail sentence for murdering his mother is "manifestly inadequate".

Adam Owens, 35, has been sentenced to at least 17 years in jail for stabbing 69-year-old environmental campaigner Doris Owens several times in her bed in Swanhaven, on the NSW south coast, in 2006.

The murderer had pleaded guilty. In sentencing submissions, he said he felt no remorse and he regretted not killing his mother 20 years earlier.

Justice McCallum sentenced Adam Owens to 23 years' jail with a non-parole period of 17, saying there was no apparent motive for the attack.

Adam Owens shouted "manifestly inadequate" as the sentence was read out.

He was taken away by court officers.

Quote: A quick 17 years? He could be on to something here? No one gets parole anyway so he should add the other six years before complaining.