Oh?
Granting that the law of averages is on their side, (hunter being the most common male occupation in a hunter/gather society) there is still no way that they can state his occupation with such certainty.
Maybe he was a shaman and while all the hunter were out he was making woo-woo with the women folks.
Speculation in science is fine. When stated as fact, not fine.
Still all in all a very interesting finding. I wonder where the other 20% came from.
It may be the 20% mentioned below.
"About 8,000 years ago, said Underhill, a more advanced people, the Neolithic, migrated to Europe from the Middle East, bringing with them a new Y chromosome pattern and a new way of life: agriculture. About 20 percent of Europeans now have the Y chromosome pattern from this migration, he said.