The man who was fatally shot by a Plymouth police officer inside an Arby's Thursday night died of a gunshot wound to the head, the Hennepin County Medical Examiner says.

The medical examiner has identified the man as Derek Ray Wolfsteller, 31, of Plymouth, noting the Bureau of Criminal Apprehension is investigating the circumstances of his death.

Wolfsteller died Thursday after being shot by officer Amy Therkelsen, a seven-year veteran of the Plymouth Police Department.

According to the preliminary investigation:

Therkelsen was responding to a disturbance at an Arby's restaurant in Plymouth around 8:20 p.m. and she was told the man had a weapon.

When she arrived, two people were attempting to subdue the man, who has now been identified as Wolfsteller. When he didn't follow Therkelsen's commands, she used her Taser, but it was ineffective.

She then attempted to subdue him physically and a fight ensued. Wolfsteller attempted to grab for her weapon, but Therkelsen gained control of it and fatally shot Wolfsteller.

No other weapon was found at the scene.

Therkelsen sustained minor injuries in the altercation, but did not require treatment. No one else in the restaurant was injured.

Another officer, Christopher Hendrickson, an eight-year veteran, witnessed the shooting. Both officers are on administrative leave, which is standard procedure.

The Bureau of Criminal Apprehension is investigating the incident. Once the investigation is complete, its findings will be turned over to the Hennepin County Attorney's Office for review.