Const. Heidi Stevenson grabbed her pistol and began shooting at Nova Scotia’s mass killer after he rammed her vehicle head-on, with the officer managing to fire 14 shots and injure the gunman’s head before she was killed.

New documents released Monday detail what the commission leading a public inquiry believes happened at Shubenacadie, N.S., on April 19, 2020, when the gunman, who was disguised as a Mountie and had already murdered 19 people, shot and injured RCMP Const. Chad Morrison and then killed Stevenson and bystander Joey Webber.

All three were shot in the space of seven minutes, before the killer