The Forever Witness: How DNA and Genealogy Solved a Cold Case Double Murder by Edward Humes

 Fascinating true crime.

"Genetic genealogy...was the source that never lied, never faded with time, never forgot. It was the forever witness."

The murdered bodies of Tanya Van Cuylenborg and her boyfriend, Jay Cook, were found separately in isolated parts of Washington State in November, 1987. The lack of clues hampered the investigation and eventually the case went dormant without new leads. Decades later, in 2018, Detective Jim Scharf working the cold case in Snohomish County, Washington, would team up with genetic genealogist, CeCe Moore, to identify the killer. The man, William Talbott II, was subsequently tried and convicted using this new and powerful forensic tool -- but it has been widely misunderstood. 

Along with details about the Cuylenborg/Cook case, the book also focuses on the controversial use of genetic genealogy as a method of fighting crime and identifying criminals. The argument centers on privacy and the rights of those who submit their DNA to both public or private labs. Many of us have willingly put our saliva in a tube and mailed it to one of the ancestry sites looking for information. The question then is whether or not that voluntary surrender implies consent for police or other organizations to search those data bases for their own purposes -- mostly to secure and identify a suspect in a murder or other violent crime. Keep in mind that when you send off your DNA, you are also revealing that of your relatives and mostly without their knowledge or consent. It's definitely an interesting debate, and I know on which side I fall. Several US States have already begun the process of regulating and establishing clearcut laws about using genetic material. 

I found the entire book absorbing and extremely interesting. I was not aware of the cold case and was astonished to hear the outcome of the trial and subsequent appeal. I liked the way the author wrote the story of Tanya and Jay and the way the narrative included so much detail that created in me a desire for the couple to get some sort of resolution and ultimately, justice. Sometimes I forget how much I enjoy reading well-written true crime. I recommend it. 

Thank you to NetGalley and Penguin Group Dutton for this e-book ARC to read and review.

This is a standalone and is not part of any series.

Genre - true crime