In this part of the story, in some respects, the police have to start over. If not Mark, and not somebody else already explored, then who? What would be the motivation to shoot somebody sitting at a desk in the middle of the night. Acting on a hunch, progress is made.

The police, suspects, and false leads: Famed, former FBI profiler John Douglas, serial killed researcher, Dr. Katherine Ramsland, and real-life detective instructor Greg Lawson pull back the curtain on the fictional investigation.

Finally, a breakthrough. Do we know what it’s in the “Bottom of the Box?"