article_snippet.sent: Hours earlier her grandson, Alistair, 4, was stabbed 18 times as Alistair slept in Alistair bed.
article_snippet.sent: A post mortem revealed Alistair, who was regularly babysat by Alistair grandparents, was stabbed 18 times and had tried to defend Alistair from the attack.
article_snippet.sent: Alistair was killed while sleeping, before the accused allegedly turned on Ms Mach in the backyard (pictured) former lover Brian Mach was apparently bound and gagged while Chinese national Cai Liao turned on the other members of Chinese national Cai Liao family .
highlights_snippet.sent: Liao  stabbed Alistair in Alistair sleep while Mr Mach was gagged .