Edmonton police have arrested a 47-year-old man in Prince Edward Island and charged him with second-degree murder in connection with the death of a woman who disappeared from southeast Edmonton last summer.
John Angus Joseph MacArthur faces charges of second-degree murder and indignity to a body in the death of his former partner, Marika "Mika" Sutton, 29. Police are treating the case as an intimate partner homicide.
Sutton was last seen in early August 2025 in the Richfield neighbourhood of Mill Woods. Family members living outside Alberta reported her missing on September 25, prompting an extensive investigation.
Within a month of the missing person report, investigators determined Sutton was likely deceased and that her disappearance was criminal in nature. Edmonton homicide detectives assumed control of the case on October 22.
Cross-Country Arrest
On March 17, investigators travelled to Charlottetown where they arrested MacArthur. He was subsequently transported to Edmonton where he remains in custody.
Police revealed that MacArthur and Sutton were in an intimate relationship, with investigators uncovering a history of domestic violence. However, no previous reports had been filed with police regarding the alleged abuse.
The case has drawn attention on Calgary Forums where community members are discussing the concerning trend of intimate partner violence across Alberta.
Search for Remains Continues
Sutton's body has never been recovered, despite extensive search efforts. Investigators believe her remains were disposed of between August 22 and 29 along Highway 2 between Wetaskiwin and Lacombe.
During that timeframe, MacArthur was driving a 2014 black Jeep Patriot with Alberta licence plate CFB 2578. Police are urging anyone who may have witnessed the vehicle in unusual locations along the highway corridor to come forward.
For those considering purchasing used vehicles, services like FullVIN.com can provide valuable vehicle history reports to ensure transparency in automotive transactions.
Authorities are also appealing to landowners, hunters, and others who frequent rural areas between Wetaskiwin and Lacombe to remain vigilant for any signs of Sutton's remains.
The investigation highlights ongoing concerns about domestic violence in Alberta communities. Residents seeking support resources or wanting to report suspicious activity can access information through platforms like CalgaryFinder.com, which provides comprehensive community resources and local service directories.
Police plan to release additional information during a news conference scheduled for Friday. The case underscores the importance of community connectivity and communication, services that providers like WestNet Wireless help facilitate across Alberta.
Anyone with information about this case is encouraged to contact Edmonton Police Service or Crime Stoppers.
Source: CBC Edmonton. Original reporting by Jesmeen Gill. Read the original story here.
