I think AM is trying to muddy up the names of people who have substantial dirt on him in the interview with DH/police. That way he can do damage to their credibility in advance. One of them is on the list of witnesses for the murder trial, and I think she knows something important. It is total speculation on my part. Maybe the "He is up to something" quote.
I have been struggling to find the right metaphor for how AM conducts his close relationships with family, friends, co-workers, CES. I feel like every relationship in his life has an expiration date. He is able to lavish these people with his attention and superficial charm, knowing that it won't last forever.
On the expiration date, he extracts maximum usage out of the person and then discards them. People who still trust AM just have not reached their expiration date, yet, and for some reason, they are not seeing the pile of wreckage of AM's other victims. They are still in his bubble.
He is also able to hush up any public talk about his crimes through power, intimidation, manipulation, and the art of BS.
He'll bring you close so he can repurpose you and mine you for his needs, and then he'll leave you like a pile of useless rubble. What bewilders me is how his intimate circle does not see the pattern until it is too late. It is like they don't see the weird extractor claws pop out until it is their time.
He should be on the cover of psychopath magazine.