ABC News | Boy who stabbed woman at Claisebrook train station had cognitive impairment, court hears ABC News A teenage boy who admitted stabbing a waitress at a Perth train station during a violent robbery and leaving her unconscious in a pool of her own blood started using methamphetamine at the age of 14 and had a significant cognitive impairment, a court ... Teen sentenced to four years detention for stabbing woman for phone 'I can't escape': Italian tourist stabbed by teen at Perth train station 'That woman was left to die': Teen sentenced for vicious stabbing |