Four Gainesville men and a 15-year-old allegedly robbed at gunpoint a person who was carrying a rifle and marijuana, authorities said Tuesday. Natanael Soto-Wences, 17, Roberto Carlos Angeles-Avila, 17, Brandon Martinez-Nava, 18, and Guillermo Daniel Chavez, 18, all of Gainesville, were charged Wednesday with armed robbery, aggravated assault and possession of a firearm during the commission of a felony. The 15-year-old’s name was not released.