48 HOURS MYSTERY: "Nightmare in Napa," which inspired the first book, is to be broadcast Tuesday, April 17, 2007. The book will expand on the 48 HOURS content and characters, including a behind-the-scenes look at the television storytelling process, the latest court action and the stunning crime scene breakthroughs that turn cases around. The debut title in the book series, Nightmare in Napa, written by 48 HOURS producer Paul LaRosa, will be published on April 24, 2007. The book has already received praise from Publishers Weekly, which said it was a "...riveting account....LaRosa's clear chronology and thorough research give the tale the weight of reality, while his skillful winnowing of details and novel-like prose keep the pace up and the pages turning; anyone with a taste for true-crime will happily gulp down this sharp, satisfying narrative." The gruesome mystery told in both the broadcast and book versions of Nightmare in Napa began on Halloween night 2004 in idyllic Napa, Calif., a beautiful place with a strong community of neighbors and friends. Two young female roommates-a transplanted southern beauty queen and a popular engineering graduate from the Napa area-were brutally stabbed by an intruder who entered their home through a first-floor window. A third roommate heard the horrific commotion but never saw the killer. News of the tragedy sent shock waves throughout the region as well as the nation, but while investigators pursued every angle from a satanic cult to a disgruntled suitor, the murders of Leslie Mazzara and Adriane Insogna remained unsolved-until someone close enough to the women to escape suspicion came forward with a shocking confession.