A 17-year-old is the suspected gunman in a shooting that injured a 13-year-old boy, the Jefferson Parish Sheriff’s Office said. Alexis Pierce was arrested on suspicion of aggravated second-degree battery, obstruction of justice and possession of a concealed weapon, JPSO spokesman Capt. Jason Rivarde said. Deputies arrested Piece within hours of the shooting Friday night (Oct. 12) in the 2100 block of Sawmill Road, Rivarde said. Deputies were dispatched to an area hospital about 9:40 p.m. where they spoke with the 13-year-old boy who suffered a “non-life threatening” gunshot wound, according to Rivarde. Investigators believe that the shooting stemmed from an argument between the boy and Pierce.