With a little boy and his grandparents still missing, police make a dramatic arrest. A search of the suspect's property leads to one disturbing discovery after another. DNA was found, but still no bodies. What happened to Nathan O'Brien, and Alvin and Kathy Liknes? Learn how a petty grudge festered and grew into a murderous plot, and the shocking key evidence seen from high above the killer's property… in the conclusion of Hunted by Evil.