When an American died on a mysterious island, it threw a spotilght on an unknown group of people. Sentinel Island, about the size of Manhattan, lies in the Bay of Bengal. It's home to a pre-neolithic tribe who have occupied the area for more than 30,000 years - and they kill nearly everyone that approaches. In this episode, we talk to a reporter in India who tells us why they're so hostile to foreigners. 

This story is based on Lhendup G Bhutia's story in Open Magazine:  The Sentinelese: The Death of a Missionary and the Lost Tribe of the Andamans