December 23, 2014 8:05 am SDPD Top Cop Aware of Copy Cat Threat Days after two NYPD officers were ambushed and killed, San Diego’s top cop acknowledged the real threat of copy cat crimes. NBC7’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