Student left in cave for three days

A US student spent almost three days trapped inside a cave after he was left behind on a university field trip. Lukas Cavar, 19, was visiting the Sullivan Cave in southern Indiana with the Indiana University Caving Club on Sunday. He was separated from the rest of the group who then left without him, locking the gated entrance.
Read more: http://www.bbc.com/news/world-us-canada-41371549?source=Snapzu