A Covington man allegedly shot and killed his stepfather following a domestic dispute Saturday evening, according to the Newton County Sheriff's Office. Christopher Masiello, 30, was arrested and charged with murder, aggravated assault, firearm discharge while under the influence of alcohol and firearm or knife possession during a crime, according to a NCSO incident report. Masiello allegedly became embroiled in an argument with stepfather Paul Larson, 56, shortly before 9 p.m. Saturday at their residence on Island Shoals Road.