Sharing on behalf of the Alberta RCMP
FINAL UPDATE April 19, 2026
I missing woman was located over the weekend deceased.
Consort RCMP is advising that Diane Cooper was located by RCMP in the RM of Grandview, near Kindersley, SK, on April 18, 2026, at approximately 7:40 p.m.
Unfortunately, she was located deceased.
Her dog Halo was also located, and he is safe.
The circumstances surrounding her death are not suspicious.
RCMP sends condolences to the family and friends of Ms. Cooper.
UPDATE April 17, 2026
In an effort to help consolidate the activities of this missing person investigation, Consort RCMP are providing a brief summary of events and continue to seek assistance from the public in locating Diane Cooper.
Consort RCMP still believe the last known location of Diane Cooper was in Saskatchewan.
If Alberta licence plate LVA978 is seen on a grey Toyota C-HR XLE, please contact your local police to attend immediately.
Diane Cooper and her Dalmatian dog “Halo” are still missing. Diane may be disoriented and confused, so please contact your local police to respond to speak with Diane.
Summary of events:
April 6, 2026:
At 9:30 p.m., Diane Cooper reported missing to Consort RCMP;
COOPER left Calgary at approximately 3:30 p.m.;
Air tag ping provided location of Highway 12 near Veteran, Alta.; and
Alberta RCMP vehicle patrolled the area with negative results.
April 7, 2026
Cell phone pings and air tag not responding, but history shows:
o Diane’s key Fob was at 4607-50 Street in Stettler April 6, 2026, at 5:33 p.m.,
o Halo was at Palliser Trail in Hanna on April 6, 2026, at 6:59 p.m.;
o Diane’s vehicle was at 7559 Hwy 12 near Veteran on April 6, 2026, at 9:18 p.m.;
Surveillance photo provided of Diane Cooper fueling up her vehicle and the dog was with her; and
Alberta RCMP detachments roving patrols for ‘Be on the Look Out” (BOLO) for vehicle with Alberta licence LVA978, grey Toyota hatchback, for Diane Cooper with her dog.
April 8, 2026
Media Release sent out by Alberta RCMP within Alberta at 6:37 a.m., and by Saskatchewan RCMP within Saskatchewan at 9:42 a.m., to request public assistance in assistance with locating Diane Cooper;
Multiple tips from the public received by police and followed up, however nothing substantiated;
RCMP Detachments in Alberta and Saskatchewan continue BOLO vehicle patrols for Diane Cooper with negative results;
Missing Persons poster shared by Consort RCMP with neighbouring RCMP detachments in both Alberta and Saskatchewan; and
Alberta RCMP Air Services flight was completed with negative results.
April 9, 2026
Multiple tips from the public received by police and followed up, however nothing substantiated;
RCMP Detachments in Alberta and Saskatchewan continue BOLO vehicle patrols for Diane Cooper; and
RCMP Air Services Helicopter conducted patrols around Consort and Monitor with negative results.
April 10, 2026
Multiple tips from the public received by police and followed up, however nothing substantiated;
Multiple RCMP detachments BOLO for Diane Cooper; patrols made with negative results;
Saskatchewan RCMP Air Services requested and completed flight on Saskatchewan side of border, including Compeer, Major, Hwy 7, Marengo and Hoosier with negative results; and
Animal Shelters contacted in numerous locations with negative results;
April 11-12, 2026
Multiple tips from the public received by police and followed up, however nothing substantiated; and
Multiple RCMP detachments in Alberta and Saskatchewan have BOLO for Diane Cooper, patrols made with negative results.
April 13, 2026
Business in Sask., shared their surveillance footage of matching vehicle on their site in Hoosier, Sask., area on April 6, 2026, at 10:55 p.m.;
Multiple tips from the public received by police and followed up, however nothing substantiated;
Multiple RCMP detachments BOLO for Diane Cooper, patrols made with negative results; and
Alberta RCMP Air Services flight from Monitor to Alta./Sask. border with negative results.
April 14, 2026
Multiple tips from the public received by police and followed up, however nothing substantiated; and
Multiple RCMP detachments in Alberta and Saskatchewan have BOLO for Diane Cooper, patrols made with negative results.
April 15, 2026
Further review of Hoosier footage shows Diane Cooper driving her vehicle with dog in back, near Hoosier, Sask., on April 6, near 11 p.m.;
Police spoke with a person in Stettler, who stated on Apr. 6, they provided Diane directions to Calgary, but saw her leave heading east instead;
Multiple tips from the public received by police and followed up, however nothing substantiated;
Multiple RCMP detachments BOLO for Diane Cooper, patrols made with negative results;
Saskatchewan RCMP Search and Rescue advised of the investigation for missing person: Diane Cooper;
Saskatchewan Marshall Services and Surveillance teams have been notified; and
Saskatchewan RCMP Traffic Services have been notified.