A Volusia County sheriffs deputy shot and killed a Port Orange man who was brandishing a firearm Saturday in Daytona Beach, Sheriff Ben Johnson said. Edward P. Miller, 52, died at the scene after being shot by Deputy Joel Hernandez at about 2:30 p.m. Hernandez and another deputy who has not been identified already were at Fryers Towing on an unrelated matter when one of them heard a heated argument taking place outside, sheriffs spokesman Gary Davidson said.