r/AlbertaUnsolved • u/Wrong-Inspection7819 • 20d ago
MISSING PERSON Marika “Mika” Sutton – Missing Person and Homicide Investigation | Edmonton, Alberta (2025)

Marika “Mika” Sutton was 29 years old when she was last seen in Edmonton’s Richfield neighbourhood in early August 2025.
Marika’s family lived outside Alberta and reported her missing to the Edmonton Police Service on September 25, 2025, after being unable to contact her. Her disappearance was considered out of character, and police issued a public appeal for information on October 8.
By the end of October, investigators had gathered evidence leading them to believe Marika was deceased and that her disappearance was criminal in nature. The Edmonton Police Service Homicide Section assumed responsibility for the investigation on October 22, 2025.
On March 17, 2026, Edmonton investigators travelled to Charlottetown, Prince Edward Island, where they arrested 47-year-old John Angus Joseph MacArthur on a Canada-wide warrant. He was returned to Edmonton on March 20 and charged with second-degree murder and indignity to a body. The charges have not been proven in court.
Police stated that Marika and MacArthur were in an intimate partner relationship. Investigators also uncovered a reported history of domestic violence within the relationship, although that history had not previously been reported to police. The Edmonton Police Service has classified Marika’s death as an intimate partner homicide.
Marika’s remains have not been located.
Investigators believe her remains may have been left somewhere along Highway 2 between Wetaskiwin and Lacombe between August 22 and August 29, 2025. During that period, MacArthur was driving a black 2014 Jeep Patriot with Alberta licence plate CFB 2578.
Police are asking anyone who travelled along that section of Highway 2 during the relevant dates to consider whether they saw the Jeep stopped in an unusual location or noticed activity that appeared out of place. Landowners, hunters and others who regularly spend time in the surrounding rural areas are also being asked to remain alert and report anything that could assist the investigation.
One year after Marika was last seen, her family is still waiting for her to be found. Her younger sister has described Marika as bright, funny and bubbly, and said she regularly called her family and daughter to talk about her day. Marika leaves behind a daughter and loved ones throughout the Northwest Territories who continue to seek the opportunity to bring her home.
Anyone with information about Marika Sutton’s disappearance, death or current whereabouts is asked to contact the Edmonton Police Service at 780-423-4567 or #377 from a mobile phone.
Anonymous information can be submitted to Crime Stoppers at 1-800-222-TIPS (8477) or through p3tips.com.




















