If I'm not mistaken wasn't it later in the day on 12/11 that the ME removed the remains from the area. If this is correct, then according to the exif data on this picture it was made before anything was taken into custody from the site....so it's very possible that it is Caylees book that might have been in the bag with her, and the bag is more than likely the one that the MR found. Below is the part of the info embedded in the picture, I bolded the date/time the picture was made.
* Exposure Time (1 / Shutter Speed) = 1/60 second = 0.01667 second
* Lens F-Number/F-Stop = 40/10 = F4
* Exposure Program = normal program (2)
* ISO Speed Ratings = 400
* Exif Version = 0221
* Original Date/Time = 2008:12:11 11:54:43
* Digitization Date/Time = 2008:12:11 11:54:43
* Components Configuration = 0x01,0x02,0x03,0x00 / YCbCr
* Shutter Speed Value (APEX) = 387114/65536
Shutter Speed (Exposure Time) = 1/60 second
* Aperture Value (APEX) = 262144/65536
Aperture = F4
* Exposure Bias (EV) = 0/2 = 0
* Metering Mode = pattern / multi-segment (5)
* Flash = Flash fired, compulsory flash mode
* Focal Length = 24/1 mm = 24 mm
* User Comment (Hex) = 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00
User Comment Character Code = not defined
* FlashPix Version = 0100
* Colour Space = sRGB (1)
* Image Width = 640 pixels
* Image Height = 427 pixels
* Focal Plane X-Resolution = 3504000/885 = 3959.32
* Focal Plane Y-Resolution = 2336000/590 = 3959.32
* Focal Plane X/Y-Resolution Unit = inch (2)