The inquiry represents the first time authorities will outline the details of how they responded to the March 2019 shooting. The coroner-led inquiry comes more than four years after a white supremacist opened fire at two Christchurch mosques during Friday prayers. CHRISTCHURCH, New Zealand - An inquiry that began Tuesday into New Zealand’s worst mass shooting will examine - among other issues - the response times of police and medics and whether any of the 51 people who were killed could have been saved.