In 1993, a family was found murdered in their home. A Maryland police spokesperson described the homicide investigation as the most "exhaustive and labor intensive" in the department's history. And then homicide investigators found a strange manual, and the case became national news. Criminal is a proud member of Radiotopia from PRX. If you haven't already, please review us on iTunes! It's an important way to help new listeners discover the show: iTunes.com/CriminalShow. Say hello on Twitter, Facebook and Instagram. Sign up for The Accomplice. If you'd like to introduce friends or family members to podcasts, we created a How to Listen guide based on frequently asked questions. Artwork by Julienne Alexander.