The attacker asked his victims first if they were Muslim. If they replied in the negative, he stabbed them.
Canada: Machete attack on cop in Calgary mall, shots fired in Grand Prairie mall
“Suspect shot, police officer injured during physical struggle in Marlborough Mall,” by Ryan White, CTV News, September 18, 2016:
An investigation into a fight involving a man with a weapon at a CTrain station resulted an on-duty CPS member being slashed with a large bladed weapon and the suspect suffering from a gunshot wound.
Acting Calgary Police Service Chief Trevor Daroux says police responded to the area shortly after 2:00 p.m. following reports of a fight on the nearby LRT platform where a suspect was seen assaulting people with a weapon.
“A single vehicle officer was circulating and he saw an individual behind the dumpster that matched the description of the individual that was involved in the fight earlier on,” said Daroux. “The officer verbally engaged the suspect who then fled.”