Seattle police have re-opened the 20-year-old cold case of Sarah Yarborough, who was killed in 1991, and using DNA samples from the scene, they've narrowed the suspect down. To a member of "the family of Robert Fuller, who settled in Salem, Massachusetts, in 1630 and had relatives who came over before him on the Mayflower."

That could be one of thousands of people across the U.S. California DNA expert Colleen Fitzpatrick says that it's highly likely the suspect will have the last name of Fuller, since the trace is passed down from male descendants; she made the connection thanks to large genetic profile libraries:

Fitzpatrick said the DNA she used came from one of several major collections of genetic profiles, a practice she said was "really hot these days for genealogy." She said the people who donated DNA profiles to the database had either done their genealogy or had their DNA tested to trace their connections.

"It allows you to connect with relatives you can't trace through traditional documentation," she said.

We'll just note that the murderer could be the actual Robert Fuller himself, either because he traveled through time using some kind of Calvinist magic or because he is an immortal being whose agelessness is guaranteed through perpetual sacrifice. So, an array of options, for the police, here.