Alberta police have arrested a 20-year-old man from Ponoka County in connection with a fatal stabbing that occurred earlier this year. Terry Mackinaw has been charged with second-degree murder following an extensive investigation into the death of a man at the Louis Bull First Nation.

Investigation into the fatal stabbing

The incident unfolded on the night of May 1, 2026, at approximately 10:20 p.m. When Maskwacis RCMP and emergency medical services arrived at the scene, they discovered a victim with severe bleeding from what appeared to be a stab wound. Despite immediate life-saving efforts, including the administration of first aid and CPR, the man was pronounced dead by paramedics upon their arrival.

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To build the case, investigators employed several specialized tactics:

  • RCMP Police Dog Services performed a search of the surrounding area, though the search was ultimately inconclusive.
  • The Major Crimes Unit took control of the inquiry to lead forensic efforts.
  • Forensic Identification Services examined the scene and a residence where the fight occurred.
  • Authorities used aerial photography via drones to document the location.

An autopsy performed on May 4 determined that the manner of death was a homicide.

The path to an arrest

While the incident occurred in the spring, the arrest did not take place until November 6. The Major Crimes Unit, supported by the Maskwacis RCMP detachment and an Interview Assistance Team, carried out the arrest of the suspect.

This long-term investigative process highlights the coordination required between local detachments and specialized provincial units. Following his arrest, Mackinaw was remanded into custody. He is expected to appear before a provincial court in Wetaskwin on Tuesday, November 10, to address the murder charge.

FAQ

What led to the murder charge?

The charge follows a forensic examination and an autopsy that confirmed the May 1 stabbing was a homicide.

When will the suspect appear in court?

Terry Mackinaw is scheduled for a court appearance in Wetaskwin on November 10, 2026.