Australian businessman's daughter among 6 stabbing victims in Sydney, attacker known to police but not charged.

Daughter of Australian businessman identified as a victim in Sydney attack; attacker known to police but not charged before attack. Here's a 400-character summary: A daughter of an Australian businessman is among the six victims of a stabbing attack at a Sydney shopping center. The attacker was known to the police but had not been arrested or charged prior to the incident.