The attempted robbery occurred just before 2 p.m. at the Space Coast Credit Union at 150 Malabar Rd., not far from the Palm Bay Police Department headquarters.
“The robber was apprehended by a customer with a concealed weapons permit,” said Yvonne Martinez, spokeswoman for the Palm Bay Police Department.
The suspect, Floyd Francis, 23, was taken into custody after the off-duty security guard, identified as Rueben Torres, stepped out of the branch office and walked to the parking lot.
“I went to the car and got my weapon,” said Torres, who stopped off at the bank before heading to work. Torres then pulled his 9mm on the robber before he left the branch building.
“I guess it’s the New Yorker in me,” Torres said about his decision to get involved.
The suspect appeared apologetic before officers arrived and placed him in handcuffs, Rueben said.
He was taken to police headquarters for further questioning, officials said.
Bank staffers, including the tellers, gave Torres several hugs.
“Mr. Torres’ actions, while not encouraged, are appreciated and were very courageous,” Lt. Mark Renkens said in a statement. “He took action to stop a crime in progress and fortunately made a positive difference in the outcome.”