Clues that Lucas is AD.
- Lucas returns to Rosewood in 6x13; The Gloves Are On. This is the episode that Hanna asks Lucas to be her alibi for the night that Charlotte was killed. Coincidentally, this is same episode that the girls receive their first text from AD “You know who did it and I’m going to make you talk.” This just shows that AD has reason to believe the girls know what happened to Charlotte, and by Hanna going to Lucas asking for him to be her alibi, wouldn’t that give Lucas the idea that Hanna and the girls may have been involved in Charlotte’s murder?
- At the end of 6x12: Charlotte’s Web, AD is seen placing flowers on Charlotte’s grave. Before entering inside their car, a man says “I’m sorry for your loss, sir.”
- Marlene King tweeted that the letters A D are a clue. When Lucas returns, we find out he is a successful wealthy business man, with one of his occupations being a Game App Developer.
- Hanna is literally staying in his loft. He could easily have the place bugged, listening in on the girls conversations. His loft is also the place that Aria was burnt by the fire place.