(Gaston, OR) -- A Beaverton man is facing charges in connection with a fatal shooting Saturday night in Gaston. The Washington County Sheriff's Office says deputies responded to a report of a shooting. Neighbors and responders gave 42-year-old Christopher Serafin first aid, but he died at the scene. 48-year-old Christopher Maller was arrested and charged with murder in the second degree. Investigators say the shooting happened following an altercation between the two men.