Millions of digitized Nazi records force families to confront a dark, unaddressed generational history.

A Colorado investigation now points to Richland County, where the genetic genealogy will soon be fully operational.

Gemini focused on a genetic marker called a "centimorgan," or cM. Looking at three names on Bob's family tree, Gemini declared that "at 1,656 cM, there is zero biological possibility that they aren't ...