 He might have also left the building by another route.However, the building's only other exit, a service door not generally used by the public, opened at the time onto a construction site that officers believed would have been difficult to walk through while sober, much less intoxicated, as Brian likely was at the time.Since Columbus has the most security cameras of any city in Ohio, more than Cleveland, Cincinnati, and Toledo combined, officers next looked to the footage from other bars to see if cameras there could explain how Brian had left the Ugly Tuna.