January 30, 2014 9:04 am Arson Suspected in Riverbed Fires Investigators were interviewing people walking and biking near the Mission Valley riverbed after four suspicious fires were set within half a mile of each other. NBC 7’s Dave Summers reports. US & World Videos 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 2:20 Bodies of Missing Men Found in Rubber Bins Inside Storage Unit 1:42 Hundreds of Golden Retrievers Walk a Mile for the Official Boston Marathon Dog 1:51 Typewriter Shop Owner Receives Gift From Tom Hanks