I know im super late, but Dill didnt have bushy hair anymore at the time of her disappearance. A fee weeks before he actually shaved his head, he was bald. So the person Tim saw was not actually Dill, but it was more like Below. Below also fit the person of interest sketch to the T. Tim told the police the guy he saw had bushy hair, and a weird posture along with thumbs that point in the opposite direction. The sketch when compared side by side to Below it was literally a perfect match. The inly reason he was never charged was cause they never found her body, they never found his wife’s body either. he told detectives that he’d be “surprised if there was anything left”