New genetic evidence suggests that Kennewick Man, an 8,500-year-old skeleton found in Washington state, is related to members of a nearby Native American tribe.

The DNA may help resolve a long-running scientific mystery, while at the same time reigniting a debate over who should have custody of the remains.

Kennewick Man was discovered accidentally in the mud flat along the Columbia River in 1996. He's caused a ruckus ever since.