The Sydney Morning Herald | Katherine Abdallah found guilty of manslaughter of cousin Suzie Sarkis The Sydney Morning Herald A Sydney woman who fatally stabbed her cousin after a violent and prolonged argument over her Mercedes has been found guilty of manslaughter. Katherine Abdallah, 37, submitted she had acted in self-defence when she killed Suzie Sarkis, 21, at her ... Woman who fatally stabbed cousin during a fight about her Mercedes found guilty of manslaughter Katherine Abdallah: Cousin stabbed to death over Mercedes argument |