to know. more than 30 dead in buffalo. anger and frustration and now questions mounting about the response. were residents adequately warned about this monster storm? the national guard going door-to-door and more than 400 pieces of snow equipment on the ground to reopen streets. calls for prayer around the world for the former pontiff. pope francis saying his predecessor s health has taken a turn for the worse. one nation overdosed. the break glass tool that high schools are turning to do stop fentanyl overdoses in their hallways. and the incredible come back. a varsity athlete attacked by a shark. how she recovered to swim her way to a state title. announcer: this is nbc nightly news with lester holt. and good evening. i m tom llamas in for lester on a very busy night. we are tracking two developing stories right now. one of the worst airline meltdowns in recent memory and for southwest it is far from over. the airline canceling more than 2,500 or 62% of it