TAMPA — The robber who shot a Brink’s guard and a man who tried to help at a Brandon credit union this month got away with about $120,000 in cash and the driver’s gun, records show.The robber fled with a bag containing the cash after shooting the guard and a good Samaritan during a struggle outside a GTE Financial branch on Dec. 6, according to a search warrant affidavit released Wednesday.The robber, who so far has managed to elude a manhunt, also took the Brink’s driver’s gun, the affidavit states.The same person is also wanted in five bank robberies in Pinellas and Hillsborough counties, authorities say. The reward for information leading to his arrest is now $50,000.The search warrant affidavit, filed on the same day of the robbery to search the suspected getaway car, outlines the facts of the GTE Financial case, some of which haven’t been released by the Hillsborough County Sheriff’s Office.The Brink’s guard was servicing an ATM next to the front door of the credit union at 101 W Bloomingdale Ave. about 11:45 a.m. when the robber, showing a handgun, approached and demanded money.The two men began to struggle and the robber fired his handgun, striking the Brink’s guard. A bystander tried to intervene and was also shot. The suspect drove from the scene in a black, mid-2000s Ford Mustang.Deputies were already familiar with a 2008 Mustang that was stolen during an armed carjacking in St. Petersburg on Nov. 4, the affidavit states. About 30 minutes after the GTE Financial robbery, deputies found that Mustang at the Creek Bridge Apartments, about a mile west of the credit union.The hood was still hot to the touch, suggesting it had recently been running.A witness doing construction in the parking lot told deputies a black male with dreadlocks wearing a white shirt under a black sweatshirt walked quickly from the area of the Mustang toward an apartment building at 3116 Buck Run Drive, according to the affidavit.A SWAT team and crisis negotiators converged on the complex and evacuated several apartments. Authorities focused on eight apartments inside a building near where the Mustang was found but came up empty after a five-hour search, according to the Sheriff’s Office. Deputies believe the suspect likely used another vehicle to flee from the apartment complex prior to the search.In a news conference that day, Sheriff Chad Chronister said the Brink’s guard was shot twice. One bullet struck his ballistic vest and did not penetrate his body. The other shot struck his torso. He was treated and released from the hospital.The citizen was shot once in the lower body. According to the Sheriff’s Office, he is a retired Hillsborough County employee who was waiting for his wife to come out of the credit union at the time of the robbery.The search warrant affidavit includes the names of the guard and good Samaritan but the Tampa Bay Times is not publishing them because the suspect in the case is still at large. Efforts to reach the men Wednesday were unsuccessful.A Sheriff’s Office spokeswoman said an update in the case was not available.Investigators asked anyone with information about the suspect to call the Sheriff’s Office at (813) 247-8200. To be eligible for a cash reward, call Crime Stoppers of Tampa Bay at at 1-800-873-8477.