Just before 9:30 PM on Sunday, the Duplin County Sheriff’s Office responded to a residence on the 100 block of Ralph Jones Lane in the Mount Olive area of Duplin County.  According to witnesses at the scene, two men had gotten into a verbal altercation.  The argument escalated, and Juan Manuel Martinez Nava allegedly brandished a firearm. That’s when the altercation turned physical.  During the fight, the firearm discharged and the second man, Oscar Ruben Zamudio Rivera, was struck in the head, leading to his death.  Nava provided a statement corroborating witness accounts of the incident.  Nava was arrested on an open count of Murder.  He was placed into the Duplin County Jail under no bond.  The Duplin County Sheriff’s Office says the investigation is continuing.