This Week in Crime: Like 'To Catch a Predator,' Only With More Earth Tones

In unrelated cases, two Reston residents have been involved in some pretty unsavory behavior.

A Reston man has pleaded guilty to charges related to his courtship of a 14-year-old girl who turned out to be Woodstock police officer Derek Good.

Matthew Chilton, 25, pleaded guilty in Shenandoah County Circuit Court on Wednesday to charges of using a computer to commit sex offenses, carnal knowledge of a 14-year-old without force and taking indecent liberties with a child under 15, according to online court records. He will return to court for sentencing June 18.

Chilton was arrested last year following a series of chats he had with Good in a Yahoo chat room.

The officer was portraying a 14-year-old girl from Woodstock as part of a covert operation to identify and apprehend child predators online, a criminal complaint states.

Chilton contacted Good and asked the officer to view his webcam.

After accepting, Good observed what appeared to be a white male masturbating, the complaint states. The chat turned sexual in nature after Good said he was a 14-year-old girl and Chilton admitted he was 24 and from Reston, it states.

"I'm from Reston." Quite a pickup line, there.

Meanwhile, another Reston resident was charged with not reporting an inappropriate cell phone photo of an underage girl.

Freedom High School Assistant Principal Ting-Yi Oei was charged with a misdemeanor by the Sheriff’s Office and placed on paid administrative leave by Loudoun County Public Schools for not following state laws requiring notification.

Oei, a 59-year-old Reston educator who joined the school in 2005, obtained the photo from a student at the South Riding school on March 14 and did not report the incident to the girl’s parents. Deputies learned of the incident about three weeks later from another source, according to a Loudoun County sheriff’s statement.

Someone call Dateline NBC.