A woman stabbed a man Thursday afternoon after he asked him to put on a mask inside a West Town convenience store.
The woman entered the store on the 500 block of North Halsted Street at around 12:35 p.m. without a mask, Chicago police said.
A 48-year-old man told her to put on a mask and she pulled out a knife and stabbed him, police said.
He was taken to Northwestern Memorial Hospital in critical condition, police said.
Zone Three detectives are investigating.