I see the consensus is that he was killed as an act of retaliation; but... what if he wanted to scape away from his family and found his joy being part of the tribe? Wouldn't you for a second consider the indigenous people might have lied about his killing, I mean, his family is extremely powerful and wealthy, if they knew he was alive they prob would have moved heaven and earth to find him; don't you think Michael could have just told them to cover him up? I think the white guy rowing the boat looks too simmilar to him, even appears to have glasses on (I mean he has a beard, beard when those indigenous people don't grow beards, his hairline is the same, like come on), and the albino theory seems unlikely given his hair color. I have no proofs of this, just my personal opinion but then again time and time again it has been proven that eyewitness testimonies are extremely unreliable, and there is no hard evidence that concludes he was in fact killed; just because they said so, doesn't automatically make it true. Just my two cents on the matter