Multiple police agencies were at Starvation Reservoir on Monday, where a car with a body inside was pulled out of the water.Investigators with Duchesne County, Salt Lake County, and Utah State Parks are now working to piece together what they say is a 20-year-old case.The car was found by Doug Bishop with United Search Corps, a nonprofit that specializes in missing person cases. He has been working with Dave Sparks, of Sparks Motors and the reality TV show Diesel Brothers, for the past six months on this cold case.'