MSNBC Dateline November 21, 2021 08:38:00
The database and building those family trees, she had found a woman whose dna was so close to that of the killer she might be a first cousin. there was just one problem. >> that first cousin didn't really know her family, the family wasn't close. >> would there be any way to fill out that possibly critical family tree? the cousin put jensen in touch with another cousin. when you talk to that woman you think this is it, we're getting close? >> yeah, i knew, this is it, i'm on the right track, i'm gonna figure out who he is real soon. >> coming up. >> she's like, i know who did it, i'm like did ...