On January 27, 2002, popular Dartmouth College professors Half and Susanne Zantop were found slain in their home in the wooded outskirts of Hanover, New Hampshire. Both had been stabbed repeatedly in the head and torso with twelve-inch combat knives. The crime--unprecedented in the bucolic college town--sparked a nationwide manhunt. Then, weeks later, a CB-radio call aroused the suspicion of an Indiana cop, leading him to a truck stop east of Indianapolis--and...