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Still, this new technology has really gotten Lieutenant Kovand's wheels turning. He's made a lot of connections
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by that point with people in like the DNA science world, and he's learning about all of the other ways that they
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can use DNA to get more info. >> Info like a suspect's name with something called YSTR profiling, which
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that's a method used to analyze DNA on the Y chromosome. And that is what's passed down from father to son,
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virtually unchanged. And since last names are also typically passed down the paternal line, Y profiling testing can
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be used to predict a person by their last name by comparing their Y profile to entries already in DNA databases.