Matt Rivers reports on the record-breaking bomb cyclone blizzard that has paralyzed cities and towns across the Northeast, Ginger Zee has the forecast, and Gio Benitez has the latest on treacherous travel conditions; Whit Johnson has details on some American tourists in Mexico being urged to shelter in place amid waves of violence after authorities said they killed Mexico's most-wanted cartel leader; after an incredible nail-biting finish at the Olympics, Maggie Rulli reports on the welcome home for the gold medal winners' after a whirlwind competition in Milan Cortina – including Team USA's mens hockey team; and more on tonight’s broadcast of World News Tonight with David Muir. 00:00 Intro 02:38 Historic bomb cyclone blasts Northeast with blizzard, causing widespread power outages 06:40 More snow possible after blizzard slams Northeast 07:40 Monster blizzard paralyzes travel, causes more than 11,000 flight cancellations 08:49 Americans urged to shelter in popular tourist spots in Me...