UPDATE: Detectives have charged a 17-year-old at Juvenile Court with two counts of aggravated assault and unlawful gun possession after he was identified as the pictured individual in the black shirt carrying the gun.
His mother called police Tuesday night after seeing the photo. The teen was taken into custody at his home. ——Three victims and witnesses told detectives that the four suspects, who were unknown to either the victims or witnesses, approached the group while they were standing on the bridge around 1:15 a.m. and began threatening them.
The victims told investigators that guns were pointed at them before one of the four suspects swung a rifle at them “like a baseball bat,” according to Metro police…