A mother searched the web for "how do mums kill their children" and "whats (sic) it like to stab someone" days before killing her two young kids in their family home, court documents show.
The NSW woman stabbed her children to death one night in their bedrooms years ago, before attempting to take her own life.
The woman's husband made the horrific discovery after being notified his children were absent from school and went to check on them.
