It's really hard to know if a vocation is truly altruistic or ego-driven. My experience as a Christian makes me think it's the latter. It's so sad the man died but how could anyone save him from himself?

I read something about how it wasn't his first time trying to make contact with the natives either but that he had tried a few other times before.

I'll have to admit ... there have been times when, faced with overzealous, holier-than-thou types, were it legal, I might have fired up my bow and arrow too !

He must have been made delusional by religious indoctrination, and the belief that God/Jesus made him all powerful, since no one could be so stupid as to not think that. One: He did not speak their language. Two: They did not speak English; and three: Walking towards uncontacted , hostile and frightened people holding something (his bible ) aloft and pointing it at them, was not good body language either. Only delusion could make you do that.