October 13, 2015 11:30 pm White Shark Sighting a Concern for Alcatraz Triathlon Swimmers Swimmers set to dive into the San Francisco Bay for an Escape From Alcatraz triathlon are on alert after new video shows a white shark attacking a seal in the area. Jean Elle 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