CHARLES COUNTY, Md. (DC News Now) -- The Charles County Sheriff's Office (CCSO) said detectives are investigating after a man allegedly killed his 15-year-old stepson overnight. The Sheriff's Office said the incident happened just after midnight inside a single-family home in the 6400 block of Huntt Road in the La Plata area. Capitol Christmas Tree makes stop in Western Maryland At this point in the investigation, detectives believed the incident was isolated to the house. The CCSO said the dad was taken into custody. This is a developing story.