http://www.cbs8.com/story/15119133/waiting-for-answers-in-mansion-deaths-mystery
"The Coronado police chief tells News 8 at this point there doesn't appear to be any criminal activity involved in this case, and that could point to suicide, but Rebecca Zahau's sister tells us Rebecca would never have taken her own life."
Her sister is extremely upset, obviously in denial. He goes on further to say binding is not uncommon in suicides, and tells the reasoning behind this.
He also discussed a very interesting theory about a piece of evidence.
The table with the broken leg. There is speculation that Rebecca may have jumped from the table off the balcony.
This is the first statement from an LE official that leans in either direction, suicide or murder. I don't think the chief is going to put his butt out on a limb, on an investigation that's escalated to the federal level, by making random statements to the media.
And, I think Rebecca's sister reaction was to the findings that are appearing to rule out criminal activity. I expect when the forensics investigation is complete, it will support those findings and the cause of death will be suicide.
As for poor little Maxie, it was a tragic accident. If he was indeed, "owling" or "planking", as some have suggested and I tend to believe, it would be prudent of JS to disclose this and send a message to parents of the dangers in these activities. It would give him some positive media exposure, something that has been lacking this past week.
I hope Rebecca's death is ruled a suicide, for the sake of both families. Her sister may come to realize it's better this tragedy ends quickly, rather than a drawn out murder investigation that dredges up dirty laundry from the past.