Patterson was found guilty of serving a poisonous beef Wellington that killed her husband's parents and aunt

The only guest to survive a toxic mushroom lunch with Australian murderer Erin Patterson said Monday he feels "half alive" without his wife, who was one of the three victims.

Pastor Ian Wilkinson wept in court as he spoke of the loss of his wife Heather after she ate a beef Wellington dish laced with death cap mushrooms -- the world's deadliest fungi.