Police are actively searching for 31-year-old Frederick Derocher following an attempted armed robbery on Friday on Island Lake First Nation. RCMP have since arrested 32-year-old Tamarah Dillon in connection to this incident. (RCMP/submitted)

By Logan Lehmann

Crime

UPDATED: One still at large after attempted armed robbery on Island Lake First Nation

Sep 13, 2025 | 5:35 PM

Update: Sept. 17, 11:15 a.m.

Pierceland RCMP confirmed they arrested Tamarah Dillon, 32, of Onion Lake First Nation on Sept. 14 near Big Island Lake Cree Nation.

However, they are still looking for 31-year-old Frederick Derocher from Island Lake First Nation in connection with this incident.

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Loon Lake RCMP are asking the public to report any and all sightings of a man and a woman following an armed robbery with a firearm on Island Lake First Nation, also known as Ministikwan.

Police say they’re looking for 31-year-old Frederick Derocher from Island Lake First Nation and 32-year-old Tamarah Dillon of Onion Lake First Nation after a man was robbed at gunpoint at a home on Friday.

Officers determined that Derocher and Dillon approached the man and pointed a firearm at him, but did not shoot and instead left in a Ford F-150 extended cab pickup truck. The truck is said to be a model year 2009-2014 with a two-tone styled paint job – grey on the rocker panels and red above.

Police are searching for this red Ford truck. (RCMP/submitted)

Following the incident, police have charged Derocher and Dillon with robbery with a firearm, pointing a firearm, use of an imitation firearm while committing an indictable offence, possession of a firearm or weapon contrary to order, and possession of a weapon for a dangerous purpose.

Warrants have been issued for both of their arrests.

Derocher is described as 5’10” and 165 lbs with black hair and brown eyes. Dillion is described as 5’5” and 190 lbs with black hair and brown eyes.

Anyone who sees Frederick Derocher or Tamarah Dillon, or who has information on their whereabouts, is urged to call RCMP at 310-RCMP (7267) or Saskatchewan Crime Stoppers at 1-800-222-TIPS (8477).

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loganc.lehmann@pattisonmedia.com

On Bluesky: @loganlehmann.bsky.social