CHAPTER TWENTY THREE Riley felt her stomach sink at what Cullen had just said. She gripped the phone tightly as she began to pace the room. She put the call on speakerphone so her colleagues could hear. “Where did it happen this time?” she asked Bull Cullen. “Just outside of Caruthers, a little town in the western part of the state.” Riley glanced at her colleagues and sensed that they were thinking what she was thinking. The killer is moving westward. He had started in Indiana, then these two were widely separated in Illinois. She asked, “A town on a line out of Chicago?” “Yes, another heavily used commuter line,” Cullen said, “Her name was Sally Diehl, and she was killed just like the others, bound by duct tape to railroad tracks a short distance from town, killed by an oncoming

