SYDNEY — Police identified Sunday the assailant who stabbed and killed six people at a busy Sydney shopping center before a police officer fatally shot him.

New South Wales Police said that Joel Cauchi, 40, was responsible for the Saturday afternoon attack at the Westfield Shopping Centre in Bondi Junction, in the city’s eastern suburbs and not far from the world-famous Bondi Beach.

NSW Assistant Police Commissioner Anthony Cooke told reporters at a media conference on Sunday that…