Witnesses say the offender confronted the victim and produced a handgun in the Walgreens parking lot, but he did not get any proceeds.
The victim lost the offender in a pursuit that went east on Belmont and then south on a side street.
The gunman is described as male, black, in his 40's, heavy-set, with some facial hair growth. He wore a ball cap, dark pants, and both a brown corduroy coat and a yellow hoodie. He was last seen running southbound on Cambridge Avenue.
Chicago Police Department case #HW480951.