A Gainesville man was sentenced Thursday morning by Hall County Judge Jason Deal to serve 12 years in prison for his role in the theft of a Jeep in November. A Hall County jury on Tuesday found Richard Chambers, 40, guilty of theft by taking, robbery by force and battery.Chambers was one of three co-defendants charged in a Nov. 10 carjacking that those accused said resulted from confusion arising from a relationship gone bad, and prosecutors said was theft. Two co-defendants, Mitchell Adams and Stephanie Samples, already have pleaded guilty.