When his wife left him, Mandeep Singh bought knives and waited patiently in the foyer of her school until she finished her exam.
As soon as 22-year-old Parmita Rani walked out of the Queen St premises, he stabbed her to death.
Her friend Parminder Sandhu, 22, wrestled the knife from the defendant and rushed over to Ms Rani, who was bleeding to death from a wound that had severed an artery, a vein and her airway.
While he bent over her, Singh pulled another knife out and viciously attacked Sandhu - the man he believed his wife had left him for.
The knife wound punctured his lung and it could have been worse had it not been for a member of the public who intervened and restrained the defendant.