OKLAHOMA CITY -- Oklahoma City Police are searching for an armed man they believe was involved in the Tuesday robbery of a pharmacy.

According to police, two armed men came into the Reliable Discount Pharmacy just before 6 p.m.

The 57-year-old pharmacist, Jerome Ersland, shot at and fatally hit 16-year-old Antwun R. Parker.

Leaving the wounded robber behind, the unidentified man ran from the store and into a nearby neighborhood.

The police scoured the area, both on foot and from the air, but the man was not found.

They were able to take a third man into custody, whom they believe is linked to the crime.

The person police are searching for a black male with braided hair. He could be wearing a red shirt and carrying a gun.

Anyone with information is asked to call 911.

Ersland was taken to police headquarters to answer questions about the event. The information collected will be given to the District Attorney's Office Wednesday for further consideration of criminal charges.