Amazing photo right by plane crash in San Francisco this afternoon, by well-known passenger David Eun (the former Samsung exec and more). He's tweeting updates @Eunner. Re-posted here. Sheryl Sandberg was on flight but switched planes at last minute--to get bonus miles for family! Unconfirmed that two died, at most, and a few dozen injured but vast majority of over 200 in fine shape. Update: 2nd photo below that, from passenger who sent to his daughter @eunicebirdroh to post.