A court has convicted two Roanoke County residents of driving under the influence in a February chain-reaction crash that killed a paving company employee in a road construction work zone.

A Roanoke County General District Court judge Thursday sentenced 42-year-old Tracie Nininger and 32-year-old Jeffrey Dupree to 12 months in jail in the death of 46-year-old Richard Slone. Dupree received an additional 12 months for refusing to take a breath test.

Judge Vincent Lilley also ruled manslaughter charges against both drivers could go before a June 6 grand jury.

Police say Dupree was driving behind Nininger on February 20 when Nininger's vehicle struck a backhoe on the side of the road. Dupree's SUV then rear-ended her Hummer3.

Slone was struck by a plow attached to the backhoe.