July 12, 2013 4:22 pm RAW VIDEO: SFPD Chief Greg Suhr A busy part of San Francisco was on lock down Friday after someone walked into a jewelry store and opened fire. US & World Videos 2:05 Police find, return dozens of abandoned Amazon packages 0:28 A Vermont state trooper plunges into icy pond to rescue 8-year-old girl 2:59 Keep these travel etiquette tips in mind this holiday season