Matthew McKendrick arrested for allegedly having sex with underage girl

Matthew McKendrick was arrested in July.

A member of the U.S. Army 's Old Guard is facing charges that he had a sexual relationship with a 13-year-old girl in Fairfax County.

The U.S. Army confirms that Spc. Matthew McKendrick was arrested on July 26 and charged with carnal knowledge with a 13-14 year old without force and indecent liberties with a minor.

He was arrested by Fairfax County Police.