ABC Online | Man who bludgeoned mother to death not 'sick enough' to plead not guilty ... ABC Online A man with a history of mental illness who killed his mother at her Mosman Park home last year was not "sick enough" at the time to warrant a not guilty plea, the Supreme Court in WA has been told. Samuel Edward Ashby, 40, killed his mother, Deann ... Son 'slaughtered' mum with pan and knife Son feared poisoning before killing his mother - The West Australian Mosman Park slaughter: Voices told Samuel Edward Ashby to kill his mum |