Maryland Man Dies from July 16 Single-Vehicle Crash 

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Franconia Police District – A 24-year-old man has died from injuries sustained in a crash that occurred at 5:14 a.m. on July 16 in Lorton. Officers responded to a single-vehicle crash on Richmond Highway near Woodside Lane. Santos Casco Sierra was the driver and sole occupant of a 2010 Ford Fusion. Detectives from our Crash Reconstruction Unit determined the Ford was traveling south on Richmond Highway when the vehicle left the roadway, struck a tree and caught on fire. Fire and Rescue personnel responded to extinguish the fire and extricate Casco Sierra. He was taken to the hospital with injuries that were considered life threatening. Sadly, he succumbed to his injuries yesterday. Speed and alcohol were factors in the crash. 

Anyone with information about this crash is asked to contact our Crash Reconstruction Unit at 703-280-0543. Tips can also be submitted anonymously through Crime Solvers by phone -1-866-411-TIPS (866-411-8477), and by web – Click HERE. Download the ‘P3 Tips’ App “Fairfax Co Crime Solvers”. Anonymous tipsters are eligible for cash rewards of $100 to $1,000 dollars. Please leave contact information if you wish for a detective to follow up with you.  

This is the 8th non-pedestrian related fatality in the County to date in 2022.   

Year to date, in 2021 there were 6 non-pedestrian related fatalities.   

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

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