STOCKTON — A good Samaritan who stopped to help a woman who he heard screaming for help was robbed Thursday afternoon.The 66-year-old victim was driving about 4:40 p.m. near East Main and North Pilgrim streets when he came upon the woman and two men, Stockton police reported. The woman was pleading for help so the man pulled over.[gh:iframe src="https://www.google.com/maps/embed?pb=!1m18!1m12!1m3!1d3145.9424432031446!2d-121.27764268467719!3d37.95512987972697!2m3!1f0!2f0!