(Salem, OR)  --  Police say a man who was driving while impaired is responsible for a crash that killed a highway worker in Salem.  Authorities say 55-year-old William Hatch the third died yesterday morning when he was hit by a car driven by 20-year-old Roberto Lopez-Dejesus.  Police say Hatch was hit while working on Mission Street near I-5.  Lopez-Dejesus is facing charges that include first-degree manslaughter, reckless driving, reckless endangerment of a highway worker and DUII.