Repeat: Julian Stevenson, accused of killing his two children in Lyon, France, seen on CCTV footage taking the children, Mathew, 10, and Carla, 5, to the bakers to buy sweets hours before their deaths .
Julian Stevenson, accused of killing his two children in Lyon, France, seen on CCTV footage taking the children, Mathew, 10, and Carla, 5, to the bakers to buy sweets hours before their deaths .