The wounds of mass shootings at Sandy Hook Elementary School, Virginia Tech, Stoneman Douglas and Army Public School, Peshawar are still raw. But, what has fundamentally changed post Christchurch is the addition of a horrific dimension — live streaming of crime.
The inquiry would look into the suspected gunman's activities, use of social media and international connections, as well as whether there was "inappropriate" priority setting in state counter terrorism resources.
An analysis by The New York Times of recent terrorism attacks found that at least a third of white extremist killers since 2011 were inspired by others who perpetrated similar attacks, professed a reverence for them or showed an interest in their tactics.
In an attack broadcast live on Facebook, a lone gunman armed with semi-automatic weapons targeted Muslims attending Friday prayers in Christchurch on March 15, killing 50 worshippers and wounding dozens of people.