WALNUT CREEK, Calif. (AP) — About 80 people, some wearing ski masks and wielding crow bars, ransacked a high-end department store in the San Francisco Bay Area, stealing merchandise before fleeing in cars waiting outside, police and witnesses said. Three people were arrested while the majority got away after the large-scale theft Saturday night shocked shoppers at the Nordstrom in Walnut Creek, police said. NBC Bay Area reporter Jodi Hernandez tweeted that she saw the thieves rush into the store in the downtown shopping district in the city some 20 miles (32 kilometers) northeast of San Francisco. “About 25 cars...