You are close
MH testified that he
may have deleted some but didn't remember specifically deleting them. But it was on November 3rd. RH did brag about the online account password, and how he "guessed it", these are both part of their testimony.
Zellner, in her motion, points a finger at Individual B (RH LOL), saying he deleted VM's sometime before 7:12am on November 2nd, which is before she was reported missing. I have been looking at his phone records, which are attached as an exhibit to the motion, to try to figure out why she thinks that. He did call her on the 1st at 6:42pm, so I'm wondering if KZ thinks that maybe he called her cell number, while the VM message was playing, he hit the # key to enter into the VM's... then deleted.
There is only 2 ways to access the voicemails. 1 ~ Her phone. 2 ~ Another phone by dialing her number and entering the password after the # key while her VM was playing.