evidence: A Facebook Live video purportedly showing the last terrifying moments inside the cabin on Yeti Airlines flight 691 before it crashed in Nepal on Sunday has circulated widely online, as search and recovery efforts continue on the ground. [...] CNN has corroborated the video based on geolocation, a flight manifest and information on the Yeti Airlines website. [...] A spokesman for Civil Aviation Authority of Nepal (CAAN) has said the video is not from Sunday’s crash. When pressed, he said he and his team had no technical evidence to support that claim. Instead, he pointed to passengers laughing at the first sign of turbulence before panic set in seconds later as evidence it could not be the Yeti Airlines flight.