A 10,000-year-old mummy found in Nevada proves to be closely related to indigenous American peoples.

I don't find this surprising -- we already knew that ancestors of historic indigenous Americans were living in North America somewhat earlier, in the time of the Clovis culture.

However, it is a mistake to jump to the conclusion that the mummy is associated with any particular subgroup which lived near that place in historical times, because we cannot project human groups back that far. 10,000 years is long enough for groups to merge, split, move thousands of miles, and change their identities beyond all recognition.