Six people were killed and several others injured – including a small child – when a knife-wielding attacker rampaged through a busy Sydney shopping centre on Saturday, Australian police said. Multiple people were stabbed by the unidentified assailant, who was shot dead by a policewoman at the scene. The incident occurred at the sprawling Westfield Bondi Junction mall complex, which was packed with Saturday afternoon shoppers. “I’m advised that there are five victims who are now deceased as a result of the actions of this offender,” said New South Wales police assistant commissioner Anthony Co…