Overview

• Calgary police on Aug. 29 charged 18-year-old Irfan Mohammadi with three counts of aggravated assault tied to the July 8 incident.
• An Aug. 26 search of a Calgary residence seized a folding knife and clothing that police say matched items used during the attack.
• Investigators report that CCTV footage and witness interviews led to identifying the suspect.
• Three victims—two men and a youth—were found at the Euroslide and at two nearby locations and were hospitalized, with one initially in life-threatening condition.
• Staff Sgt. Scott Campbell said the violence followed a brief verbal dispute between school acquaintances, the motive remains unclear, and police continue to seek tips through CPS or Crime Stoppers.