What was supposed to have proved casey anthony's guilt?

[Chez]

Well she didn't even report her kid to be missing for a whole month...in fact her mother had to do it. She also lied to police and strangely kept a bag of trash in her car's trunk...I mean who does that? Most people have garbage collectors...Also she claimed to have left Caylee with a certain nanny...this nanny said she didn't even know who Casey or Caylee were. On the other hand, there are pics of Casey on the internet where she hugs Caylee with a big smile...making her look like a loving, sweet, joyful mother, not a cold-blooded killer that wanted to be rid of her kid. I think people just don't want to believe that sweet angel face could have committed such a crime. But I have seen people doing evil things, being cold, then suddenly posing demure and smiley-faced for photos, like they are the sweetest people ever.