Mahnomen: Fosmark Faces Bomb, Violence Threat Charges

MAHNOMEN, Minn. (trfnews.i234.me) — Johnathon Emery Fosmark faces two felony threat charges in Mahnomen County District Court.

Fosmark, 35, is charged in court file 44-CR-26-439.

The charges stem from an alleged incident on July 13, 2026.

Prosecutors allege Fosmark made violent threats and later claimed a propane bomb was inside a camper.

Threatening Messages Reported

The complaint says a mental health worker contacted law enforcement after receiving threatening text messages.

The worker told investigators that Fosmark allegedly threatened to kill members of his family.

The worker said the messages left him afraid for his safety.

Investigators reviewed an image of one message, according to the complaint.

Prosecutors say the message included threats involving firearms, explosives, and violence against the worker’s family.

The worker reportedly told police he planned to leave his job because of the threats.

No police officer names are included in this report.

Johnathon Emery Fosmark | Booking photo

Law enforcement later went to a camper in Mahnomen County around 8:26 p.m.

The complaint says Fosmark initially came outside and asked why officers were there.

Police informed him that he was being arrested for alleged threats.

Fosmark then went back inside the camper, according to prosecutors.

The complaint says the situation became tense while officers tried to calm Fosmark.

During the encounter, Fosmark allegedly claimed he had military-grade weapons inside the camper.

He also allegedly claimed that he had created a propane bomb.

Officers moved to safer positions while continuing efforts to end the encounter peacefully.

Fosmark eventually stepped outside and was taken into custody.

Police then searched the area, according to the complaint.

Investigators reported finding no bomb or weapons.

Count One charges Fosmark with communicating a threat involving an explosive device.

The charge cites Minnesota Statute 609.713, subdivision 2.

A conviction can carry up to three years in prison.

A fine of up to $3,000 is also possible.

Count Two charges Fosmark with threats of violence.

That charge falls under subdivision 1 of the same statute.

A conviction can carry up to five years in prison and a $10,000 fine.

Those are maximum penalties and are not sentences against Fosmark.

The criminal complaint contains allegations that have not been proven in court.

Fosmark is presumed innocent unless proven guilty beyond a reasonable doubt.

Public case information is available through the Minnesota Judicial Branch.

Regional custody information is available through the Northwest Regional Corrections Center.

I’m Adrian Cole reporting for TRF News.