A Michigan man who stabbed a fellow customer at an area store following an argument over face masks was shot and killed by police after threatening a sheriff’s deputy with a knife, according to Michigan State Police (MSP).

The MSP's First District said that a 77-year-old man, who was wearing a mask, and 43-year-old Sean Ruis, who was not, got into an altercation over the face coverings Tuesday morning at the Quality Dairy Store in Eaton County. 

Ruis was refused service by the store because he was not wearing a face mask, and he allegedly stabbed the 77-year-old man outside before fleeing the establishment in a car. 

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A sheriff’s deputy in Eaton County later saw Ruis and initiated a traffic stop. Ruis allegedly exited his vehicle with a knife and attempted to attack the deputy.

The deputy “attempted to increase distance by backing up and subsequently shot and injured the suspect,” according to the MSP.

 

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Ruis was taken to a nearby hospital and died during surgery. 

Officials confirmed that the 77-year-old, who has not been identified, is alive at an area hospital.

The deputy was not injured in the incident.

The MSP are investigating both the stabbing at the Quality Dairy Store and the shooting of Ruis.

A new coronavirus prevention rule took effect in Michigan on Monday requiring individuals to wear a face mask or covering whenever they are in a public space. The rule also requires the use of face coverings in crowded outdoor spaces where social distancing is not possible. 

The Centers for Disease Control and Prevention have urged people to wear face coverings, practice social distancing and take other health precautions amid the ongoing pandemic.