St. Mary's Co. Fatal Collision in Mechanicsville Under Investigation

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On October 9, 2021, at approximately 8:00 a.m. deputies from the St. Mary’s County Sheriff’s Office responded to the 27000 block of Three Notch Road in Mechanicsville, for the reported serious motor vehicle collision. Deputies arrived on scene and located a 2017 Chevrolet Silverado truck with two occupants, that had collided into a commercial building. The operator of the truck, William Gregory Baker, age 40 of Mechanicsville, and passenger Nina Marie DiGregorio, age 39 of Leonardtown, were pronounced deceased at the scene. Members of the St. Mary’s County Sheriff’s Office Collision Reconstruction Unit responded to the scene and continued the investigation.

Preliminary investigation determined Baker was traveling southbound on Old Village Road when he failed to negotiate a turn in the roadway, crossed the centerline, struck a guardrail, and continued into the building.

Speed has been determined as a factor in the collision. The investigation is ongoing and anyone with information is asked to contact Deputy First Class Shawn Shelko at (301) 475-4200 extension 78147 or by email at Shawn.Shelko@stmarysmd.com.

Citizens may remain anonymous and contact Crime Solvers at (301) 475-3333, or text a tip to “TIP239” plus their message to “CRIMES” (274637). Through the Crime Solvers Program tipsters are eligible for an award of up to $1,000 for information about a crime in St. Mary’s County that leads to an arrest or indictment.

For official news and information, follow the St. Mary’s County Sheriff’s Office on Twitter @firstsheriff.

Disclaimer: In the U.S.A., all persons accused of a crime by the State are presumed to be innocent until proven guilty in a court of law. See: https://so.md/presumed-innocence. Additionally, all of the information provided above is solely from the perspective of the respective law enforcement agency and does not provide any direct input from the accused or persons otherwise mentioned. You can find additional information about the case by searching the Maryland Judiciary Case Search Database using the accused's name and date of birth. The database is online at https://so.md/mdcasesearch . Persons named who have been found innocent or not guilty of all charges in the respective case, and/or have had the case ordered expunged by the court can have their name, age, and city redacted by following the process defined at https://so.md/expungeme.