DETROIT (AP) –A Michigan sheriff’s deputy on Tuesday fatally shot a man suspected of stabbing another man who had challenged him about not wearing a mask at a store, police said.

The shooting occurred in Eaton County, southwest of Lansing, about 30 minutes after the stabbing at a Quality Dairy store, state police Lt. Brian Oleksyk said.

A sheriff’s deputy spotted the man’s vehicle in a residential neighborhood and shot him when he got out of his car and tried to attack her, Oleksyk said.

“Drop the weapon! Drop the weapon!” the officer, a 22-year veteran, demanded, according to neighborhood security video released by police.

The man, Sean Ruis, was holding a screwdriver and knives, Eaton County Sheriff Tom Reich said.

“It’s very unfortunate she had to use her weapon, but she had to save her life,” Reich said.

Ruis, 43, of Grand Ledge, who worked at the Michigan Department of Transportation, died at a hospital. He was suspected of stabbing a 77-year-old man inside the store when he was confronted about not wearing a mask, Oleksyk said.

The stabbing victim was in stable condition at a hospital.