He had been making a consistent effort to contact the Sentinelese in an attempt to discuss Jesus with them; according to his acquaintance, “he knew that he had no business doing that.”
According to the fisherman who assisted him in getting there, the tribe then wrapped a rope around his neck and dragged his corpse away.
Due to Indian law, which forbids anybody from visiting the island, Chau’s corpse was never found, and his death was not investigated.