An FBI agent and a state fire marshal's office official died Friday night after they were struck by a car at the scene of a crash on Interstate 270 in Montgomery County, Maryland State Police said.
State police said Deputy Chief State Fire Marshal Sander Cohen, 33, called the Rockville barrack around 10 p.m. to report a single-vehicle crash in the fast lane of southbound I-270 near Gude Drive. Cohen blocked the crash scene with his personal vehicle and activated his emergency flashers, reports WBAL .

