The family of a Queensland man who killed six people at a Sydney shopping centre have condemned his actions as “truly horrific”, and say they are still “trying to comprehend what has happened”.

Forty-year-old Joel Cauchi has been identified as the attacker who set upon people with a knife at Westfield Bondi Junction on Saturday afternoon.  

Five victims — four women and a man — died at the shopping centre. Another woman, identified as Ashlee Good, died in hospital.

Cauchi, who grew up in Toowoomba in Queensland’s south-east, was shot dead by a senior officer at the scene.