There has been a lot of tragedy on Everest over the years, but apparently this is single deadliest accident in history. I can't imagine climbing Everest at the best of times, but I imagine spring is a pretty sketchy time to be doing it. It sounds like there were around 50 climbers who who got hit by the avalanche and most were Sherpas. Tragic day....
http://www.cbc.ca/news/world/mount-everest-avalanche-kills-12-nepalese-guides-1.2614711
[URL]http://www.cnn.com/2014/04/18/world/asia/nepal-everest-avalanche[/URL]/