The shooting happened around 10:30 a.m. at the GoWireless Verizon store, located near the intersection of Chippewa and Kingshighway.
Police said two men came to the store and walked out with two Galaxy Edge cellphones. The clerk witnessed the theft and followed the men into the parking lot. One of the suspects turned and fired a shot at the clerk, striking him in the back. The suspects got into a newer-model, white Mercedes and drove away.
The clerk was taken to the hospital in critical condition.
Anyone with information on the suspects’ identities or whereabouts is asked to call CrimeStoppers at 866-371-TIPS or the St. Louis Metropolitan Police Department at 314-231-1212.