No, I didn't bring up that one example to support the general claim that murder is part of human nature. I brought it up to debunk the notion that only a very small proportion would necessarily engage in these activities in the absence of a state. For that purpose, all I needed was a single counter-example.

If instead you want evidence for the more general claim, you can look at some of the studies I've referred to in this thread (e.g. the one about London or Croatia), or just look up anthropological surveys of hunter gatherer societies that show murder rates 50x higher on average.

> I brought it up to debunk the notion that only a very small proportion would necessarily engage in these activities in the absence of a state.

But, what you brought up is a very small part of world. And that small part of world has own governance structure too. They dont have social "state", but they do have some kind of social structures, culture, hierarchy, traditions and unwritten laws.

Also, how do you know those are murders and not wars or executions? Murder is specific thing, killing members of other tribe over resource is not going to be considered murder. Raising child to adult is expensive on food among other things, you do that to other people and you do that less to own.