This post will focus only on Shannan Gilbert’s case.
I’ve copied my post from a different thread below, but I feel it is also relevant in here.
Please let me know if you think this is a plausible scenario:
After the interaction with Gus Colletti Michael Pak follows Shannan Gilbert down Anchor way. Shannan Gilbert knocks on Barbara Brennan’s door and when there was no answer she runs across the street to the house of Peter Hackett. Perhaps Michael Pak catches up to Shannan Gilbert here. Peter Hackett advises that he is a doctor and invites them into his house. He then administers some type of medical treatment (perhaps an injection of some type of barbiturate) to Shannan Gilbert with Michael Pak present. The treatment calms Shannan Gilbert enough that she is able to leave with Michael Pak. She has a subsequent reaction to the treatment administered by Peter Hackett, on top of the other substances in her system, in Michael Paks SUV shortly after leaving Peter Hacketts house. Michael Pak panics at an unreponsive Shannan Gilbert. Michael Pak remains in Oak Beach until he feels the coast is clear and Law Enforcement has left. He subsequently dumps Shannan Gilbert’s body into the marsh (she may still be alive and unresponsive or may have already succumb to a lethal mix of drugs in her body). He takes her belongings and places them within the vicinity of Peter Hacketts house. He then leaves Oak Beach.
During the interview on 48 Hours Moriarty states to Peter Hackett, “You called Mari on your wife's cell phone on the third on that Monday when Mari said you called."
Peter Hackett is then quoted as saying, “Yeah, I'm sure I did. When you give ... look let me not get into it.”
Could he have been about to say, “medical assistance” or “medical treatment”?