Kennewick Man

Kennewick Man is the name for the skeletal remains of a prehistoric man found on a bank of the Columbia River in Kennewick, Washington, USA on July 28, 1996. The discovery of Kennewick Man was accidental: a pair of spectators (Will Thomas and David Deacy) found his skull while attending the annual hydroplane races.[1]....................

The remains had been scattered in the reservoir due to erosion. Following delivery of the cranium by the coroner, they were examined by archaeologist James Chatters. After ten visits to the site, Chatters had managed to collect 350 bones and pieces of bone, which with the skull completed almost an entire skeleton.[5] The cranium was fully intact with all the teeth that had been present at the time of death.[6] All major bones were found, except the sternum and a few bones of the hands and feet. The remains were determined to be those of "a male of late middle age (40-55 years), and tall (170 to 176 cm), slender build".[7] Many of the bones however, were broken into several pieces.[8] At the University of California at Riverside, a small bone fragment was subjected to radiocarbon dating. This fixed the age of the skeleton at approximately 8,400 radiocarbon years or 9,300 calendar years, not the nineteenth century, as had originally been assumed.[5] After studying the bones, Chatters concluded they belonged to a Caucasoid male about 68 inches (173 cm) tall who had died in his mid fifties.[5]
Chatters found that bone had partially grown around a 79 mm (3.1 in) stone projectile lodged in the illium, part of the pelvic bone.[8] On x-ray, nothing appeared. Chatters put the bone through a CPT scan, and it was discovered the projectile was made from a siliceous gray stone that was found to have igneous origins.[8] Geologically, this refers to a stone that formed in a silica-rich environment during a volcanic period. The projectile was leaf-shaped, long, broad and had serrated edges, all fitting the definition of a Cascade point. This type of point is a feature of the Cascade phase, occurring in the archaeological record from roughly 5000 to over 8000 years ago.[8].............

In Wikipedia

The internal surface of Kennewick Man's right hip bone shows the embedded stone point, upper right.

in The Seattle Times - Kennewick Man yields more secrets