The mother a young woman who died on Center Hill Lake in July 2015 is challenging the investigation of the DeKalb County Sheriff’s Department that concluded the death was accidental. Sherry Smith of Sumner County believes her daughter was murdered. The body of 21 year-old Lauren Taylor Agee was found July 26, 2015 by a fisherman on Center Hill Lake near Still Point Boat Ramp across from Pates Ford Marina.