the murders became a microcosom that had been playing out for centuries. >> how long before they were in oklahoma and realized they syrup sitting on oil? >> well, yeah. >> you had the beverly hill billies experience. >> the osage tribe was a lotted. the u.s. government forced the native american tribes to turn them into private property owners, when the osage were negotiates, they managed to slip into their agreement a curious provision. they will maintain all subsurface rights to their land. if if they lost the subsurface, they controlled what was urthneath. this was 1906, they had a hint there was oil on the land, they shrewdly managed to hold on to this part of the land they couldn't see. they became the world's first underground reservation. >> in are retrospect, it was beyond brilliant, you quote, they slipped it into the negotiations. how did the smart white man allow that to happen? >> the osage was lead by one of the greatest chiefs, lead by a man who spoke seven language, latin, french and they had more leverage than other native american tribes, they owned a deed to the d.it