A year on from Joel Cauchi's apparently indiscriminate stabbing spree at the Westfield shopping centre in Bondi Junction, what have we learned? Later this month, an inquest into the attack, which claimed the lives of six people and injured another 10, will begin.  Today, chief reporter Jordan Baker, and crime reporter Perry Duffin, on what the coroner hopes to learn and whether any intervention in the lead-up could have prevented Cauchi’s attack.For more: 'At 3.33pm the bloody rampage began. By 3.39pm six innocent people lay dead or dying', Baker and Duffin, The Sydney Morning Herald.Subscribe to The Age & SMH: https://subscribe.smh.com.au/See omnystudio.com/listener for privacy information.