I have only had one person die so far, and she was one of the two who fell over the waterfall.
It's so sad. Her daughter honored her grave yesterday, and I nearly cried. And then there was Nio... *weeping*
On the other hand, my sister hates her tribe because of their... ahem... relationship issues. Imagine her glee to turn on the game one morning and fifteen of them had died of starvation. They were too stupid to care for their garden.