With a donated van, Dr. Maggie Zingman prepared for her first road trip in 2007. Since then she has driven to 33 states and 42 cities in hopes of catching a killer. Now, eighteen thousands miles, 5 caravan trips, and 2,000 ruled out DNA possible suspects later, she continues visiting homicide units, college campuses, and sporting events like the PGA tour, passing out the killer's information in hopes someone may provide a tip or a lead.