In this particular case, the boyfriend was a married US Representative with known scumminess factors and every reason to believe that Chandra had not told anyone about the relationship, but soon would (when her expectations of a life with the low-life turned to bitter disappointment).
I don't know whether you've ever dealt with politicians. I've had the opportunity to observe some of them at much closer range lately. I've seen politicians take an action publicly that looked and sounded to be in support of a measure when the plan all along was to manipulate the progression of events to kill that measure deader than a doornail. The deceptive games that are played by many of our politicians boggle the mind. And I'm talking about deception and manipulation in the passing or non-passing of a simple BILL!!!
If that level of deception is employed simply in the legislative arena, do you think some of our politicians are above employing a high level of deception/ cover-up/ false evidence in a case involving something as serious as this? If you don't think that's at least quite possible, then you really need to start spending some time really getting to know even your local county or state-level politicians.