I read that it was on his THIRD visit (each one being met with arrows and wounded on the second attempt) that he was killed.
WTF was he expecting, really?
And anyway, what was he planning to bring them? They've been isolated and content in their own little community for thousands of years and then some guy wants to tell them that they're all sinners, their dead ancestors are in hell and they're not worthy unless they follow a man in the sky they've never heard of from a place they've never heard of in a language they dont understand.
Darwin award winner right there.