There are two reasons one might return to the scene of the crime.
The first is due to a pathological mentality, mental issues, — they enjoy that feeling.
The second reason is the worry that they left behind evidence at the scene.
I think the assistant director might belong to the second category, — as the person who reported the crime, he had every ability to tamper with the crime scene.
Take, for instance, the actress's bracelet, — why would it accidentally fall into the pit?
Is it possible that he threw it there deliberately to interfere with the police investigation?
I remember that when Luke asked about the ownership of the bracelet, the other party was reluctant to say, — who knows if it was a decoy tactic.
In any case, I think this guy is very suspicious, has a motive, and has a prior incident of hiring someone to injure Lucas.
Captain, I suggest we apply for an arrest warrant directly to prevent him from escaping."
Susan thought for a moment and agreed.
