In 2004, the FBI was tipped off to a gruesome pattern of murders along America’s highways and interstates. Today at least 850 homicides have been linked to a solitary breed of predators: long-haul truck drivers. They have been given names like the “Truck Stop Killer,” who rigged a traveling torture chamber in the rear of his truck and is suspected to have killed fifty women, and “The Interstate Strangler,” who once answered a phone call from his mother while killing one of his dozen victims. The crisis was such that the FBI opened a special unit, the Highway Serial Killings Initiative. In each case, the victims—often at-risk women—are picked up at truck stops in one jurisdiction, sexually assaulted and murdered in another, and dumped along a highway in a third place. What’s worse, the transient nature of the offenders and multiple jurisdictions involved make these cases incredibly difficult to solve. Based on his own on-the-ground research and drawing on his twenty-five-year career as