I'm trying to keep up, so forgive me if this has come up, but this thread moves so fast. What stands out for me is this (BBM):
The door was locked when we got here but I know where the key was at.
I went in and they were laying on the floor.
Those seem like strange details to even mention on a 911 call after happening on a scene like that.
Not really strange if you look at what the 911 operator asked her:
911: OK. Is there anybody else in the house?
Caller: Not that I know of.
911: OK.
Caller: The door was locked when I got here, but I have a key to his house, and I went in and they were laying on the floor.