Joel Cauchi, 40, sent the crowded Westfield Bondi Junction complex into panic on Saturday when he began stabbing people with a long blade.
Five of the six people who died were women. Several others, including a baby girl, were injured.
The New South Wales police commissioner told Australia’s ABC News that it was “obvious” Mr Cauchi focused on women.
The only man killed in the attack was security guard Faraz Tahir, 30, who tried to intervene.
A person could kill a greater number of people in a set span of time with less energy expended with a gun. But the sound also broadcasts what’s happening to a greater distance.
6 people is a lot