Police said 23-year-old Daquan Williams was arrested and charged with common law robbery.
The incident happened on April 24 at approximately 11:50 a.m.
Reports suggest Williams entered the AIB Business Center located at 2416 Crabtree Boulevard.
Police said he sat at a video gaming station before approaching an employee.
When the employee came out of the office, police said Williams assaulted her with a stun gun and robbed the store before fleeing.