DELTA TOWNSHIP, Mich. – A Michigan man who refused to wear a mask inside a store was later shot and killed by a deputy after he stabbed another customer during an argument about the mask issue, police said. Investigators said the argument happened around 6:45 a.m. Tuesday at the Quality Dairy store in Dimondale. The argument ended with a 77-year-old Lansing man suffering from stab wounds. The manager of the store said Sean Ernest Ruis, 43, of Grand Ledge, stabbed the 77-year-old man simply because he asked Ruis to put on a mask. Video shows Ruis walking toward the deputy, who said Ruis was armed with a knife.

Officials say Ruis was also denied service by store employees for failing to comply with the mask requirement. Police say Ruis stabbed the Lansing man and the fled the store. MORE: Here’s how Wayne County Sheriff’s Office plans to enforce Gov. Police say the man got out of his vehicle with a knife to attack the deputy who pulled him over. The 23-year veteran deputy of the Eaton County Sheriff’s Office feared for her life, officials said.

DELTA TOWNSHIP, Mich. – A Michigan man who stabbed another customer at a convenience store during an argument over wearing a mask was later shot and killed when he pulled his knife on a deputy, Michigan State Police say. UPDATE: Deputy fatally shoots Michigan man wanted for stabbing customer during mask argumentThe incident happened around 6:45 a.m. Tuesday at the Quality Dairy store in Dimondale, according to authorities. Ruis was also refused service by the store because he wouldn’t wear a mask, officials said. Ruis pulled out a knife and stabbed the other man before fleeing the store, according to MSP. An Eaton County deputy saw Ruis at 7:13 a.m. on Jerryson Drive in Delta Township and initiated a traffic stop, officials said.