Police link Lorton man charged with sexually assaulting minor to second assault

(Updated at 1:15 p.m.) A Lorton man charged with alleged sexual battery of a minor may be responsible for a separate, earlier sexual assault against a woman in Mount Vernon, police say.

The Fairfax County Police Department announced today that additional charges have been filed against Louis C. Allen, 42, after they matched his DNA to evidence collected from a sexual assault at a Mount Vernon Lakes apartment on Feb. 2.

According to police, a woman reported entering her apartment building in the 8300 block of Brockham Drive at 7:05 p.m. that day and being “grabbed from behind by a man,” who sexually assaulted her.

“The victim was able to fight off the suspect. He left property behind as he ran away,” the FCPD said in a news release. “This item was collected as evidence and sent to the Department of Forensic Science (DFS) for DNA testing.”

According to police, the DFS analysis detected Allen’s DNA on the evidence that was collected.

Allen was arrested on May 24 for allegedly touching a kid inappropriately multiple times at a playground in Lake Accotink Park on May 21. He was charged with aggravated sexual battery and served warrants for assault of a family member and failing to appear in court for previous offenses, the FCPD reported at the time.

Fairfax County General District Court records show that Allen previously arrested for an attempted vehicle burglary on Oct. 25, 2020.

He was initially charged with possession of burglary tools and entering a vehicle, which are misdemeanors, as well as destruction of property over $1,000 — a felony. However, the felony was later downgraded to a second misdemeanor charge of entering a vehicle, and Allen entered a no contest guilty plea at a preliminary hearing on Jan. 26, 2021.

He was also arrested on May 13, 2021 for an April 12, 2021 assault and battery incident.

After the Lake Accotink arrest, police said Allen was initially being held without bond at the Fairfax County Adult Detention Center. A judge set a bond of $50,000 in the case that hasn’t been paid, according to a Fairfax County Juvenile and Domestic Relations District Court clerk.

Right now, though, Allen is in a Tennessee jail on charges of sexual exploitation of a minor and aggravated photography of a minor, the FCPD said today. He was extradited from Fairfax County to face those charges after the May 24 arrest, according to the department.

“Detectives traveled to Tennessee and obtained DNA from Allen,” police said. “DFS was able to provide a DNA confirmation based on the direct comparison of the DNA collected from Allen and the collected evidence” from the Mount Vernon assault, for which he has been charged with abduction with the intent to defile and object sexual penetration.

According to the FCPD, Allen will be extradited from Tennessee to Fairfax County for Lake Accotink Park assault. He’s scheduled to appear in court on Feb. 15.