DNA Match Links Arrested Man to Additional Assault


Mount Vernon Police Station- 42-year-old Louis C. Allen is facing additional charges after a DNA match linked him to another sexual assault that occurred in February. 

On February 2 at 7:05 pm a woman entered her apartment building in the 8300 block of Brockham Drive. She was grabbed from behind by a man and sexually assaulted. The victim was able to fight off the suspect. He left property behind as he ran away. This item was collected as evidence and sent to the Department of Forensic Science (DFS) for DNA testing. 

During the last three months of the investigation, a Certificate of Analysis was received from DFS revealing Allen’s DNA was on the evidence collected. Allen is currently being held in Tennessee for sexual exploitation of a minor and aggravated photography of a minor. 

Detectives traveled to Tennessee and obtained DNA from Allen. DFS was able to provide a DNA confirmation based on the direct comparison of the DNA collected from Allen and the collected evidence. Detectives obtained warrants for abduction with the intent to defile and object sexual penetration 

He will be extradited to Fairfax County for the sexual assault of a juvenile at Lake Accotink Park. The hearing is expected to be in February. 

Man Arrested for Sexually Assaulting Child at Park | Fairfax County Police Department News

Victim advocates from our Major Crimes Bureau’s Victim Services Division have been assigned to this case to ensure the victim’s family is receiving appropriate resources and assistance.

Detectives are asking anyone with information about this case or believe Allen had inappropriate contact with them to please call our Major Crimes Bureau, option 3. Tips can also be submitted anonymously through Crime Solvers by phone – 1-866-411-TIPS (866-411-8477), by text – Type “FCCS” plus tip to 847411, and by web – Click HERE. Download our Mobile tip411 App “Fairfax Co Crime Solvers”. Anonymous tipsters are eligible for cash rewards of $100 to $1,000 dollars if their information leads to an arrest. Those who wish for a detective to contact them, please leave contact information. 

For ongoing updates, please read our blog and follow us on Twitter, Facebook and Instagram at @FairfaxCountyPD. 

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