News Release, St. Mary’s County Sheriff’s Office

On September 2, 2019, at approximately 7:30 p.m. deputies from the St. Mary’s County Sheriff’s Office responded to the 21300 block of Great Mills Road in Lexington Park, for the possible drowning.

A complainant contacted 911 and advised an acquaintance entered a lake on the south side of Quatman Road and was not able to be located.  Numerous agencies including the Calvert County Dive Team responded to assist in the search for the victim.

The victim, later identified as Nathaniel Warren Rosengrant, age 34 of no fixed address, was located deceased in the lake by divers.

Detectives from the St. Mary’s County Criminal Investigations Division responded and are continuing the investigation. Anyone with information on this incident is asked to contact Detective Daniel Sidorowicz at (301) 475-4200 extension *8043, or by email at

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.

David M. Higgins II, Publisher/Editor

David M. Higgins was born in Baltimore and grew up in Southern Maryland. He has had a passion for journalism since high school. After spending many years in the Hospitality Industry he began working in...