So, from this article:
http://www.cbs8.com/story/15538406/family-releases-200-pages-of-zahau-phone-records
The cell phone records confirm Zahau listened to her voicemail for two minutes at 12:50 a.m. on July 13, about two hours before her estimated time of death.Adam Shacknai, the brother of Zahau's boyfriend, called 911 later that morning at 6:48 a.m. to report Zahau was hanging nude from the balcony at the mansion. She was gagged with her hands and feet bound.
The phone records show a flurry of text messages and phone calls in the 24 hours prior to Zahau's hanging; including 34 messages and calls to and from the phone of Jonah Shacknai; 20 contacts with her sister Mary Zahau-Loehner; 10 calls or texts involving Adam Shacknai; and 7 contacts with a phone owned by Jonah Shacknai's friend, Phoenix-based dermatologist Dr. Howard Luber.
There were three text messages and one phone call – all on July 12 – from phones registered to Jonah's father and step mother, Gideon and Marcelle Shacknai, who live in New York State.
One final text message came into Zahau's phone at 10:41 p.m. on July 12 from Jonah Shacknai's ex sister-in-law, Nina Romano; the twin sister of Max's mother Dina Shacknai.
This is a lot of phone calls and texts!!
So.. 10:41pm Nina leaves text mesage (RZ did not reply)
Then the scream reported by someone?? at what thime? 11ish?
12:50am JS leaves a message and RZ deletes it?
2:50am is 2 hours later (estimated time of death)
Adam then finds her - IIRC - it is stated somewhere rigor mortis was evident... take the human body 3 hours to start rigor mortis - so what stage was Rebeccas body at?
This article is saying Rebecca then wouold have to complete all the knots and prepare herself to hang, write the note all in 2 hours?
IMO: Someone is lying.....