By Cormac Pearson & Sam Hall & Joe Smith The family of the man whokilled six people in a horrifying knife attack in a Sydney shopping mall recognised him on TV footage of the atrocity. In a statement released today the family of the killer, who attacked shoppers at random on Saturday afternoon described his actions as “horrific” and said he had suffered mental health issues “since he was a teenager”. Police have named the attacker as Joel Cauchi, 40, from Queensland, adding that he was known to police, but had not been arrested or charged before he committed the murders on Saturday afternoon. …