My two Cents, I do not believe the mystery witness is Jodi, she is the already guilty of murder charge, this is sentencing and,with the exception of this mystery witness, Jodi would (moo) most likely not be able to shut out her own testimony. Because this person's testimony followed the sex tapes I do believe it is Alyce to argue that even though Jodi was engaging in sex talk with Travis and joking about the tree tying up and other kinkiness this in no way is indicative that she is not a domestic violence survivor. They want to keep Jodi the victim and the survivor. Alyce was seriously haggard and a wreck during her testimony. Her career and expertise, and her honesty with regard to her resume was hammered by Juan. She sounded inept, was depressed etc. She probably refused to testify- maybe for mental health reasons- again and maybe was offered to do it behind closed doors, although maybe one cannot refuse to testify, I do not know . If I remember correctly, the days that Jody had witnesses supporting her she always looked nicer and chipper which is why she may have put the blazer on. Time will tell, I hope.