Henry Antonio Taylor, 31, of 108 Thornwood Drive, Cartersville, was booked into the jail shortly before 1 p.m. and charged with armed robbery and four counts of false imprisonment.
On Friday, investigators arrested two other suspects -- Corey Mandrill Thompson, 27, of 307 Iron Belt Court, Cartersville, who was charged with armed robbery and four counts of false imprisonment, while Kristy Nicole Richardson, 22, of the same address, was charged with party to the crime of armed robbery.
Sgt. Jonathan Rogers said Saturday that Richardson is suspected of driving the duo to the scene of the alleged crime, and investigators recovered video surveillance of the incident, using it and other evidence to track down the suspects.
In a recent press release, Sheriff Clark Millsap said investigators are working to determine if the Metro PCS incident is connected to other recent robberies in or near Market Square Shopping Center -- the suspected July armed robbery of Rue 21, 289 Market Place Blvd., in which a clerk sustained injuries, and a similar June incident at Banana Boat Salvage Grocery at 65 Merchants Square Drive.
The alleged armed robberies occurred while the stores were open for business, or in the case of Banana Boat, shortly after closing. During all three incidents, customers were reportedly in the businesses.
During the alleged hold-ups of Metro PCS and Rue 21, two men armed with a gun forced customers to back rooms while clerks were instructed to empty cash registers and safes.
In what Rogers called a violent and brazen armed robbery, the Rue 21 clerk reported being hit in the head with a gun three to four times and kicked in the side several times.
Although the incident report did not indicate how much cash was allegedly taken from Banana Boat, suspected armed robbers got away with more than $1,300 from Metro PCS and more than $1,000 at Rue 21.

