An uncontacted indigenous tribe in the Brazilian Amazon has been murdered one by one. None remain alive.

The massacre may have started when murderous colonizers got the tribe used to eating gifts of sugar, then gave them poison (mixed with sugar?).

The last survivor refused all contact. We do not know the tribe's language, or even its name.

*Invasions and illegal exploitation of indigenous lands in Brazil tripled under Bolsonaro, says advocacy group.*