Manchester Arena bombing inquiry continues - live updates from Wednesday's hearing The response of the emergency services is being examined in the public inquiry into the terror attack that killed 22 people at an Ariana Grande concert in 2017 The Arena attack claimed 22 lives (Image: Vincent Cole) Further evidence on the response of the emergency services to the Manchester Arena bombing was continuing to be heard today. The independent public inquiry into the atrocity was entering its 53rd day. The inquiry's tenth chapter of evidence includes an emergency response timeline. Greater Manchester Police expert witness, Detective Inspector Michael Russell, was due to continue to introduce key CCTV and audio evidence.