NASHVILLE, Tenn. (WTVF) — 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.
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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.
One of the victims was reportedly hit in the face by the rifle, and a second victim was hit on the head by a pistol. A third victim told detectives that one of the suspects hit them on the head with their fist.
The victim who was hit in the face with the rifle, an unidentified 23-year-old man, was transported by ambulance to a nearby hospital for treatment.
Metro police say that the suspects are believed to be in their late teens to early 20s. They fled the scene in a gray Chrysler 300 sedan.
Anyone who recognizes the suspects from the provided surveillance photos is asked to contact Nashville Crime Stoppers at 615-742-7463.
Do you have more information about this story? You can email us at newsroom@newschannel5.com

Here’s a beautiful story of how one mother turned her grief journey into a gathering of gratitude… and organ donation awareness.
Robb Coles highlights a special event organized by Cari Hollis – whose 26-year old son Austin died two years ago. Austin agreed to be an organ donor – and that single gesture saved multiple lives.
Cari reached out to as many recipients she could find – several of whom traveled to Nashville for an emotional celebration in Austin’s honor. One woman – whose life was saved by receiving Austin’s lungs – put it simply: “He’s my angel”.
- Rhori Johnston