Since the Highway Serial Killings Initiative began in 2004, ViCAP analysts have compiled a list of more than 750 murder victims found along or near U.S. highways, as well as nearly 450 potential suspects. If there is such a thing as an ideal profession for a serial killer, it may well be as a long-haul truck driver. FBI Crime Analyst Christie Palazzolo is quick to point out that long-haul trucking is an honorable profession and that the overwhelming majority of drivers are not murderers—but it does happen, and the pattern is unmistakable. More than a decade ago, analysts for the...