The Frederick County Sheriff's Office is investigating the robbery of a cab driver.
It happened July 31st on the 5900-block of Fellingwood Drive in Frederick.
Two males and a female robbed a taxi driver. One suspect, Barry Christopher Johnson, has been identified thanks to surveillance video in the area.
Police have issued a warrant for robbery and theft for Johnson and are still trying to locate him.
The other male and female pictured have not been identified.
Anyone with information is asked to contact Detective Tim Moore Jr. at 301-600-3608.