Man confesses to Texas murder after image based on new DNA technology released

I don't need DNA testing - I already know my family history back several generations. I have no pretenses of connections to the famous, wealthy, or royalty. Even if the typical job of one of my ancestors wasn't chasing goats or sheep around connections to influential families would have zero impact on my life or self worth. I know the general parts of the world my ancestors came from and that's enough to satisfy my curiosity.