What he did was illegal. Access to the island is restricted for a reason. >>> But Mr. Chau pushed ahead in his kayak, which he had packed with a Bible. After that, it is a bit of a mystery what happened. Also, can these evangelists take a break? It's not 1600s anymore.
He was an adventurer. He would go to remote and weird places all the time, usually without any kind of primordial tribespeople to convert. Odds are he was just on another adventure, rather than him feeling that these people really needed jesus.
https://www.cnn.com/2018/11/21/asia/andaman-nicobar-us-missi...