Others here may be able to comment on why this might now be a ‘criminal investigation’... or perhaps it’s not all that uncommon when its high profile etc.
*Let’s just call 911 to a rural county emergency line and allow an hour for the vehicle and body to be recovered.
I posted same over a week ago and went over everyone’s head.
As for as the one hour reported being submerged, the Tesla data recorder may reveal more accurate timeline.
I also suspect that E Musk will participate in this investigation as to what happened with his Tesla.