The comedian and actor Patton Oswalt shares the posthumous true-crime masterpiece written by his wife Michelle McNamara, who died suddenly at the age of 46 in 2016. McNamara, a true crime reporter and creator of TrueCrimeDiary.com, spent years tracking a serial killer she dubbed the Golden State Killer. Between 1976 and 1986 he committed 50 sexual assaults and 10 murders up and down California. Oswalt wrote, "I can't help feeling that somewhere, in her final pages, she left enough clues for someone to finish the job she couldn't—to put California's worst serial killer behind bars." Plus: a behind-the-scenes private tour of items from NYPL's true crime collections.