DER SPIEGEL has a good overview of some of the results published recently regarding the DNA analysis of a body found in Montana on private land. Its location means it is one of the only sets of remains which have been permitted to be tested:
The article also touches on some of the concerns in the native community around DNA testing – there is no appetite for being linked to Europe populations, and very real concerns that DNA testing could be used in tribal disputes over who shares in the economic bounty from casinos that operate on the sovereign reservations.