Book Review: The Hollywood Strangler by Nathan Dylan Goodwin

Newly released, The Hollywood Strangler is the most gripping genetic genealogy case yet in this terrific series by Nathan Dylan Goodwin. Highly recommended!

The author draws on his extensive knowledge and expertise in forensics, genealogy, and DNA analysis to create an amazingly true-to-life fictional story of talented genetic genealogists digging deep into the mysteries of centimorgans and family history to try to unmask a serial killer who menaced Hollywood decades in the past. 

The prologue, set in 1980, shows dedicated medical examiner Dr. Peter Speth called to the scene of a horrific double murder in Hollywood, similar to but not identical to another recent double killing. Also in attendance: A young rookie cop named Ted Marsden. 

Fast-forward to 2022 in Chapter One, where Marsden is about to retire from the LAPD Cold Case Homicide Unit, headed by Detective Supervisor Mitzi Roberts. Before he leaves, Marsden wants to work on one last notorious cold case: The Hollywood Strangler. The game's afoot.

By Chapter Three, the cold-case detectives have gotten in touch with Venator, an elite investigative genetic genealogy company headed up by Madison Scott-Barnhart, known to one and all as Maddie. The goal is to analyze DNA left at the murder scene in an effort to find familial links to the serial killer. 

Now begins the detailed, step-by-step process of analyzing DNA matches and building speculative family trees to locate living people who are related to the killer. How these talented Venator employees use clusters, centimorgans, vital records, DNA databases, genealogy websites, and other tools and techniques will fascinate genealogy enthusiasts. Very believable and impressive, the quest to tie DNA from the crime scene to a specific family is the heart of the book.

The police procedural chapters that bookend this novel will enthrall mystery lovers. From the acknowledgements, I learned that Dr. Peter Speth is, in real life, a brilliant medical examiner whose meticulous work helped to identify and convict many villains. His involvement in Nathan's fictional case leads to key breakthroughs. I was already aware of Detective Mitzi Roberts because I'm a fan of Michael Connelly's detective mysteries, but it was a delightful surprise to come across her as another pivotal character in Nathan's book.  

Just as important, the author has created interesting, personable, and complex characters whose ongoing life experiences capture the imagination. Although The Hollywood Strangler can be appreciated as a stand-alone novel, I suggest waiting until you read the first two books in this series. As the series unfolds, you'll get to know the characters over time and gain a deeper understanding of how their actions in previous books influenced what happens in this third book.

Highly enjoyable for folks deeply interested in genetic genealogy and for fans of police procedurals. Nathan, I can't wait for your next book in the series!

Book Review: The Complete Guide to FamilyTreeDNA by Roberta Estes

Roberta Estes is the ideal author to explain the practical ins and outs of how to use the powerful tests and tools at FamilyTreeDNA. She's one of the gurus of genetic genealogy and a long-time blogger at DNAeXplained, so she has the scientific background and the writing skill to explain DNA testing and application in a step-by-step way, with examples that help make a very complex topic much more understandable.

As shown above, I've marked many pages to review and reread as I work my way through Roberta's comprehensive new book, The Complete Guide to FamilyTreeDNA, chapter by chapter. 

The brief table of contents is: 

1. Types of Testing: Y-DNA, Mitochondrial DNA, Autosomal, X-DNA
2. Setting Yourself Up for Success (how to get started on the FamilyTreeDNA website and provide enough detail to get the most out of testing)
3. Y-DNA, Your Father's Story (Y-DNA in great detail, types of tests, matches, and more)
4. Mitochondrial DNA, Your Mother's Story ("not X-DNA," mutations and haplogroups and so much more)
5. Autosomal DNA, the Family Finder Test (features, matching, chromosome browser and on and on)
6. X Chromosome, Unique Inheritance Path (a very clear explanation of the X chromosome inheritance path with fan charts and other illustrations)
7. Ethnicity, MyOrigins (understanding the site's ethnicity estimates and painting population segments on your chromosomes, how to dig deeper)
8. Advanced Matching (to avoid being overwhelmed by matches, learn to filter match results)
9. Finding, Joining, and Utilizing Projects (explanation of DNA projects, how to join and get the most out of a project)
10. Third Party Tools (Genetic Affairs and, yes, DNA Painter)
11. Creating Your Step-by-Step Roadmap (specific recommendations for what to do when you decide to test and what to do with your results)

Even with Roberta holding my hand page after page, I can see that this process requires close concentration and a measure of time--no quick fixes. Get your spreadsheets ready and prepare for a super deep dive into the tiny details, learning about DYS markers, HVR1, parental phasing, and triangulation, and a lot more. 

The many TIP boxes scattered through the book highlight specific ideas and issues to be aware of. Also, I appreciate the convenient, concise glossary (pp. 231-247). Some terminology is very familiar to me, some is less familiar, so I like the ability to flip to the back of the book and look something up. 

However, I really wish this book had an index. Because endogamy is one of the big challenges I face in applying DNA to my own genealogical research, I would have turned to the index to see what Roberta says about endogamy in various chapters. Fortunately, she wrote about endogamy in a blog post here. So do try searching Roberta's blog as a companion to her book.

By the way, the illustrations in the printed book are NOT in color (because, I imagine, that would raise the price to astronomical levels). If you want to be a power user of FamilyTreeDNA, consider buying the digital version because those illustrations are in color--just like the screens you'll be viewing when you're on FamilyTreeDNA.

Full disclosure: I received a free review copy of the printed book from Genealogical.com but the views expressed in this post are entirely my own. 

New Clues in Genetic Genealogy Challenge

My maternal haplogroup is V7A

Genetic genealogy is by far my biggest challenge (challenge is this week's #52Ancestors prompt).

Despite 21 years of tracing the paper trail of family history, I haven't fully exploited the clues provided by DNA testing. But breakthroughs may be on the horizon.

Multiple DNA Tests and Sites

I am SO lucky. Having a twin sister really comes in handy!*

Between us, we've taken 4 different tests and uploaded results to the spectrum of popular genealogy DNA sites. (Neither she nor I use our full names on DNA test sites, for privacy reasons.)

Her results confirm that our maternal haplogroup is V7A and, as we already know from traditional genealogy evidence, our origins are Eastern European. Our ancestors came from Hungary (including parts that are currently in Ukraine), Lithuania, and Latvia.

More Cousins, More Colors

To make full use of DNA Painter and other tools, I need to be able to identify matches from specific parts of my family tree.

Recently I recognized names on Sis's list of close DNA matches that are not on any other site where our results are posted. These matches fill key gaps in my genetic genealogy knowledge. Now I can color-code more ancestors more accurately as I use DNA to determine who fits where in the family tree.

Just as important, Sis's matches are giving me an incredible opportunity to reach out personally to paternal 2d cousins I knew we had but wasn't able to locate using conventional means. They only tested on one site--a site Sis used, happily for us.

DNA is good cousin bait--and I'm taking their bait. Can't have too many cousins!

*Fish in Different DNA Ponds

You can always "fish for DNA matches in different ponds" if you wish (whether you have a twin or not). Take DNA tests from different sites and/or upload your results to multiple sites. So many excellent DNA guides are available that I won't even attempt to say more, since I'm far from an expert on genetic genealogy.

It's a good idea to list surnames and origins on each site (and/or upload at least a basic family tree) so potential matches can get a sense of where the match might be. To protect privacy, I don't ever show living people on my trees.

Remember that as of now, 23AndMe and Ancestry don't allow uploads from other testing sites. That's why Sis and I tested with multiple sites, to fish in as many ponds as possible even when uploads aren't an option.

Learning at the New York State Family History Conference

Wow, it was a wonderful conference experience yesterday at the New York State Family History Conference, held for the first time in Tarrytown, New York.

Not only did I get to see friends from multiple genealogy clubs and societies around the Northeast, I had the opportunity to learn from some of the best genealogy experts in the business.


My first session of the day was Cherie Bush's New York Records and Resources at FamilySearch.org.


Cherie demonstrated some of FamilySearch's most valuable features and highlighted several record sets that researchers should check for New York-area ancestors. (One record set that appeared in her list was something I need to investigate: Bronx Probate, 1914-1931.)

She also reminded us of smart ways to use the FamilySearch site, especially the super-valuable wiki. Here is her slide about which record sets to check first when researching birth, death, maiden name, and parents. (Cherie invited the audience to photograph any and all slides. Thank you!)

Next, Diahan Southard and David Nicholson presented The Science of Genetic Genealogy. Blaine Bettinger was in the audience, having just finished his session, "Shared Matches and Genetic Networks."

My top takeaway: The software used for matching people is getting much, much more sophisticated. Living DNA is planning to offer matching that will not just show where we are from and who we match, but also how each match relates to us. In essence, the software would automate the match-analysis process that Blaine Bettinger described in his talk. Sounds promising!

After lunch, I snagged a seat in Thomas Jones's session, Genealogical Documentation: The What, Why, Where, and How. He reviewed, in detail, how to develop citations for sources we use in our genealogy research, saying: "Undocumented genealogy is useless because it can't be checked."

Many of us inherited handwritten family trees with no sources, leading to months or years of research for verification. If we properly cite our sources, those who come after us will be able to retrace our steps and also evaluate the quality of the sources we used. The idea is to allow later researchers to build on our work, rather than having to go back and check it over.

Mid-afternoon, a fun highlight was joining other Virtual Genealogical Association members for a group photo outside the exhibit hall. It was a pleasure to meet them in person--many for the first time!

My final session of the day was Judith Herbert's Ancestors of Meager Means and Even Less Fame in 19th Century NYC. She provided an in-depth explanation of why and how to conduct a surname study, with the case study of an ancestor. Very time-consuming, detailed research and analysis technique that can't be used if the name is Smith or Jones (or, as in my husband's case, Wood) because of the unwieldy number of people who would have to be evaluated.

The entire audience laughed when Judith showed a death cert where the spaces for names of father and mother had a dash. Helpful, Judith noted, only if your ancestor's given name was "dash."

DNA Results: Not Even Close

Dear cousins I don't yet know but hope are out there,

Up front, I have to say I'm sincerely grateful for all the cousins I've connected with through genealogy! I treasure our kinship, our friendship, and the shared history of our ancestors.

But I can't help wondering: Do I have more cousins I haven't yet found?

Of course I'm using conventional methods to trace all the branches of my tree. I've also hopped on the genetic genealogy bandwagon, posting my results to multiple sites. New matches pop up regularly.

However, as shown above in last week's Ancestry DNA matches (sorted by date, not relationship) most are not even close. At best, if I followed up on this lot, I might find a 5th cousin. And only one of these matches is in the "good confidence" range.

Even more discouraging, just 4 of this week's crop have bothered to post any kind of family tree. Two of those are private trees, making it difficult to check out potential relationships. The latest matches on other DNA sites are also distant cousins, and therefore not high on my priority list.

When Family Tree DNA finally delivers my long-awaited mtDNA analysis results (delayed three times already), I want to use that data to focus on my maternal line.

So, dear cousins I don't yet know, I hope we connect with each other. Don't be a stranger.

Thanks to Amy Johnson Crow for the #52Ancestors prompt, "so far away," my starting point for this post.