 Fairfax County police say the 16 and 17-year-olds under arrest had carjacked that vehicle at gunpoint earlier in Merrifield, Virginia. And that was after an unoccupied Jeep they allegedly stole from the Vienna metro station became disabled. Detectives continue to investigate. Sandy Kozel, WTOP News. And a car is stolen every 32 seconds in the U.S. and about every 47 minutes in Maryland. That's according to the Maryland Vehicle Prevention Council.