April 2, 2012 10:16 pm Investigating the Oikos Shooter Tony Kovaleski of the NBC Bay Area Investigative Unit discusses what we know about One L. Goh, the man behind the mass shooting Monday at Oikos University. 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