I'll Be Gone in the Dark is a true crime book about the Golden State Killer (also known as Visalia Ransacker, East Area Rapist, and Original Night Stalker) and the search for him. While he was active in California between 1974 and 1986, he burglarized more than 100 homes, raped more than 50 women, and killed more than ten people. He was arrested in 2018, after the police uploaded his DNA profile to a genealogy website and identified some distant relatives.
I found the topic of I'll Be Gone in the Dark very fascinating. The book is a bit confusing, though, with all the names and locations, and the time jumps. And unfortunately you notice that it was not finished by the original author, who died in 2016 (the book was released in 2018). What I missed was an afterword comparing the theories in the book with the real culprit.