A police officer and several bystanders are being hailed for running “towards danger” to confront the attacker who stabbed and killed six people at a suburban Sydney shopping center. The shopping mall, one of the country’s busiest, was a hub of activity on Saturday afternoon when 40-year-old Joel Cauchi used a knife to kill five women and one man. He also injured at least a dozen others before a police officer shot him dead. Police confirmed Sunday Cauchi had a history of mental illness and investigators weren’t treating the attack as terrorism-related. New South Wales premier and the country's prime minister praised officer Amy Scott who shot Cauchi dead as well as others who confronted him.