Link to short summary article in the Tallahassee Democrat:
Donna Adelson gives surprise testimony about jailhouse talk and family 'blackmail'
Looks to me like: the defense team wanted judge to force 2 inmates to appear for depositions. DA testified regarding information received from these two inmates re: K. Magbaunua talking about a plot to blackmail Charlie. Defense was concerned these 2 inmates would soon be released, might go back to using drugs, and thus might be unavailable as a witness for the trial.
Judge denied the motion and suggested the defense just subpoena the witness(es) for trial. He did say he'd reconsider if the situation progressed to something more than a supposition.
If this case wasn't so tragic I'd find this motion hilarious. DA clearly knows she's screwed and is so desperate. I'm a person who carries a lot of empathy and rarely exhibit any kind of schadenfreude, but for this woman, I'm enjoying watching her pathetically try and worm her way out of this.. WA will be the proverbial icing on the cake.