In the footage, which Breitbart News will not post, the gunman approaches the door of the mosque and shoots the people standing there.
He then enters the mosque and shoots people in the hallway and in the prayer area.
He then returns to his car, retrieves another rifle, and returns, shooting into the pile of bodies and then leaving.
A Twitter profile under the name “Brenton Tarrant” posted a manifesto, as well as several close-up shots of what appear to be the rifles used in the attack, where the white writing is more legible.
New Zealand has restrictive gun laws, of the sort proposed by gun control advocates in the United States.