A shoplifter has admitted killing a security guard during a struggle at an Asda superstore as she tried to flee with stolen alcohol. At the High Court in Edinburgh on Thursday, Smith pleaded guilty to culpable homicide and assaulting another Asda employee during the same altercation. Following Mr Harris-Richards' death, a post-mortem examination found he had a coronary artery condition. After Mr Harris-Richards fell to the ground, Smith continued to struggle with two female employees and grabbed one of them, put her hands around her neck and threatened: "I will end you." During the confrontation, Mr Harris-Richards' breathing became laboured and he fell to the floor.