I voted no. I hope I am wrong. Too many indications in Casey's chart, confirmed by Caylee's chart, but there is always hope for another interpretation, and kidnapping is a possibility.
What mitigates against this is Casey's refusal to talk. If Caylee really had been kidnapped, Casey would have been more honest and straightforward, even if she had lied about everything else.
Casey's stonewalling is the reason I think Caylee is dead, and Casey hopes to beat the rap!