9news.com.au | Mentally ill Perth teen cut mum's throat NEWS.com.au Mentally ill Perth teen cut mum's throat. A mentally ill teenager cut pieces of an apple to share with this mother, told her he loved her and hugged her before cutting her throat with a knife. Those were the tragic details revealed by West Australian ... Mentally ill Perth teen cut mum's throat just after he diced up an apple No jury for Gabriel Lang, WA man accused of murdering his mother with kitchen knife Teen 'slit mother's throat' — Judge |