trial but how was it cracked? the first law enforcement case i used my genetic genealogy techniques on. it s uploaded to it a genetic data base. we re not using ancest redna or 23 and me, we re using that one public data base and it s compared to everyone who s already contributed voluntarily. we re looking at people who share significant amounts dna with that unknown suspect. am i right it was the second cousin who had dna in that data base and that s what should led to i guess i should say the alleged double murderer? there were two separate people that shared dna, one was a true second cousin and the other was a half cousin once removed.