A teenager is behind bars after he was arrested in Bloomington for firing a gun. Police were in the area of Market Street and Howard Street when they heard multiple gunshots. A short time later, officers found a male matching a descripton of the suspect, who left the area. Police arrested the teenager for aggravated discharge of a gun, possession of a stolen gun and unlawful possession. He was transported to the McLean County Juvenile Detention Center. No injuries were reported.