She didn’t know her kidnapper. But he was using Google Maps — and that cracked the case.

In the hours after the attack, M.D. hadn’t begun to process the trauma of her ordeal yet. It felt unreal. But one thing that she was able to focus on was talking to detectives. She spoke to them in person and on the phone, and rode with them as they retraced the route of her abduction.

“I tried to remember as much detail as I could, anything I thought was significant,” M.D. said. “I was hoping any little clue I gave would help them put pieces of the puzzle together.”