Credit: The Charles County teen, whose name was not released, is facing a juvenile charge of making a threat of mass violence.

Md. boy, 13, charged with posting a threat against middle school

Police investigate fatal shooting in Forestville

Police ID 3 killed in Charles Co. dump truck crash

Tuesday’s flash flooding leaves its mark on Frederick, Md.

Man’s body found in Potomac River near Alexandria marina

Man shot by Va. police after striking cars was science teacher