They have the data, let’s do a painstaking day by day.
Why it is taking a while.
I understand, but they have time frames when he was at the hotel. It’s not like they have to look at an entire month or 2 or 3 months. The Mandalay Bay part of the investigation regarding his movements should not take long. In my opinion, they already know or have damn good idea what the motive at this point.
And the fact they’ve revealed when his car exited the parking garage someone used a key-card to gain access to his room, is big, unless it turns out to be hotel maid etc. But I would guess Paddock would have made sure to avoid housekeeping messing things up for him.