Casey Anthony's motive and way of murder? What do you think happened!?

I wish she would just confess so this case wouldn't stay such a mystery. I 100% believe that she is guilty. However I cannot come to a conclusion of how it happened. I think she chloroformed her and then duct taped her to suffocate her, then put her in the trunk so she could go stay at her boyfriends. What I don't know is if she intenially suffocated her or if she just wanted her to stay unconsious in her car until she came back in the morning. I see it being premeditated because of the internet searches. But Caylee's neck wasn't broken was it? The chloroform being a search yes. This trial is so suspenseful waiting for the jury to find a verdict. I just watched the closing arguments hoping she is found guilty. What do you think really happened? What do you think is the motive? I know she obviously wanted to party, but they keep saying it was to stop Caylee from talking... about what?