The man entered the bank at 9:45 a.m. on Feb. 14, displayed a handgun and demanded money from the tellers. He ordered them to open the mini vault behind the counter, according to the only customer in the bank at the time, Noozhawk advertising manager Chris Donahue.
The suspect took an undisclosed amount of cash, and no one was hurt.
The man left on foot — after apologizing to the people inside the bank, Donahue said — and was not caught despite a police search of nearby parking garages, streets and the library.
The suspect is described as a white male in his 30s or 40s, 6 feet tall and 220 to 250 pounds with brown eyes and hair above the ears.
Police released surveillance photos Thursday that were taken by bank cameras as he entered the building, before he put on a ski mask.
Anyone with information about the suspect is asked to call police Detective Charles Katsapis at 805.897.2344.