"All my life, mysteries have called out to me to be solved."
From the blurb: In I Know Who You Are, Barbara Rae-Venter reveals how she went from researching her family history as a retiree to hunting for a notorious serial killer--and how she became the nation's leading authority on investigative genetic genealogy, the most dazzling new crime-fighting weapon to appear in decades.
My thoughts: Talk about a fascinating look at how far investigations have come in the use of DNA, especially in solving cold cases. I loved Rae-Venter's story and how she went from researching her own family history, to helping adopted children search for their biological parents using commercial DNA sites, to volunteering her time to help police hunt down the Golden State Killer using one DNA sample and the latest methods of genetic genealogy.
There's A LOT of science in this book, but Rae-Venter explains it well. I learned the difference between autosomal and mitochondrial DNA; that a centimorgan is the unit of measurement for how much DNA two people share; and about DNA segment triangulation and how they can build family trees down from the most recent common ancestor (MRCA) found between two people to figure out the identity of a third person. It's time-consuming work requiring diligence and attention to detail, and Rae-Venter does it well.
All the cases Rae-Venter chronicles in this book are so interesting! I loved her investigative process, and how she uses pieces of DNA to solve the most baffling of puzzles. It's true crime writing at its best.
Happy Reading!
