Redding Police and the CHP are looking for a missing 75-year-old man. Robert McDonald was last seen Monday at about 5:30PM near the 5000 block of Diamond Ridge Drive. He is believed to be on foot. McDonald was last seen wearing a black jacket, blue jeans, and a camo ball cap. He is a white man and weight about 190 pounds. He is about six feet tall with gray hair and green eyes. He wears corrective lenses. McDonald suffers from a medical condition and may be disoriented. If you have any information on his whereabouts call Redding Police at 225-4200.