On Oct. 22, 2014, the first person in security who came face-to-face with gunman Michael Zehaf-Bibeau was Const. Samearn Son who stood at his post at the base of the stairs inside the front doors of Parliament. Son, unarmed, lunged towards Zehaf-Bibeau, stopping him long enough to shout ‘gun, gun, gun.’ This warning gave MPs, staff, and the media milling about at the top of the stairs time to run and hide.