I do not agree that the negotiations have broken down, but I do agree that Coangelo is making clear to MT where she is headed if she doesn't begin speaking the whole truth. Let's not forget that she has demolished Dulos' so-called alibi and admitted the Alibi Scripts were fabricated. That is not a small thing. She may not be telling LE the entire truth, but she has not been thrown out the door. Yet. That last charge was as much a warning to MT as it was a message to Dulos. Cooperate fully or face more charges.
Another indicator that negotiations are still in play is that she was allowed to turn herself in on the new AW, with a bond set at a fifth of what Dulos was required to pay. The bond was set by the judge based upon Coangelo's recommendation, AND she was allowed to turn herself in the day after Dulos was arrested. Bowman received notice of MT's arrest in advance; Pattis was not afforded the same courtesy. Also, while every defendant may be escorted to their car by LE after court in CT, that most assuredly is not SOP in most places - unless specifically instructed to do so. Which leads me to the final indicator, and that is the speed and virtual silence of that last hearing. The lawyers do not want to put anything on the record, but I feel quite certain that the in-chambers discussion was much more candid. I wonder if that is where the discussion of the LE escort occurred, because it sure didn't occur on the record. All of these small things lead me to conclude negotiations are still occurring.
There is much more going on behind the scenes here than we know at present, but again, LE is not going to negotiate anything until MT tells the complete, unvarnished truth. Her well-experienced attorney is quite aware of that fact. but perhaps MT still thinks she can emerge from this case unscathed.(She can't). Neither party has yet walked away from the table IMO, but Coangelo is surely letting Bowman know he expects MT's fuzzy memory to improve. As one of my mentors was fond of saying, "time will tell."