“And now you’re stuck because you don’t know who to look at next.”

Paige nodded. She didn’t know what to do next.

“Then you’re focusing on the wrong thing,” Prof. Thornton said.

Paige frowned at that.

“You’re a psychologist, Paige. Don’t focus on the who, focus on the why. What does this man want that has him killing so many women right now? What is so important to him that he’s doing it here, like this, now?”

As he said that, Paige realized that the professor had a point. She’d been running around with Christopher, trying to conduct what was essentially a conventional investigation. She’d gotten so caught up in the need to find standard evidence, in alibis and opportunities, that she’d forgotten just how much it might be possible to find just by working on the parts of the case that were in her wheelhouse.

She needed to work out what the killer was trying to accomplish with this spree. If she could understand that, maybe she might be able to work out where he would strike next.