John Allen Chau (December 18, 1991 – November 17, 2018) was an American evangelical Christian missionary who was killed by the Sentinelese, a tribe in voluntary isolation, after illegally traveling to North Sentinel Island in an attempt to introduce the tribe to Christianity. Early life. Chau was born on December 18, 1991, in Scottsboro, Alabama. https://en.wikipedia.org/wiki/John_Allen_Chau