Cindy Anthony, second from left, and George Anthony, second from right, wipe away tears during a memorial ceremony at the site where the body of their granddaughter Caylee Anthony was found on what would have been her sixth birthday in Orlando, Fla., Tuesday, Aug. 9, 2011.  Their daughter Casey Anthony was acquitted of the most serious charges related to the death of her daughter Caylee Anthony. (AP Photo/Phelan M. Ebenhack)

Photo by: Phelan M. Ebenhack

Cindy Anthony, second from left, and George Anthony, second from right, wipe away tears during a memorial ceremony at the site where the body of their granddaughter Caylee Anthony was found on what would have been her sixth birthday in Orlando, Fla., Tuesday, Aug. 9, 2011. Their daughter Casey Anthony was acquitted of the most serious charges related to the death of her daughter Caylee Anthony. (AP Photo/Phelan M. Ebenhack)