I'll Be Gone in the Dark. The #1 New York Times Bestseller, Paperback/Michelle McNamara

Completed posthumously after the author's death in 2016, this is the intricately compiled attempt on McNamara's part to solve the decades-long mystery of California's 'Golden State Killer' - a ten-time murderer who abruptly vanished. Introduction from Gillian Flynn, afterword from Patton Oswalt.