WOW! You can see the key with the ring going through it just behind the plastic keychain.
Amazing that you saw this...IF the key is associated with this case at all then there are so many possibilities. It could be as Jbean said the key to the shed but then if she had a key to the shed why break the lock? Maybe to make it look like it WASN'T her...hmmm...then there are JP's keys, Amy's keys, and the potential for anyone elses keys whom she had driven their cars. It could be a duplicate of her house key or of anyone elses key that she was able to put her hands on for any length of time. I would almost bet good money that she did have duplicates made of people's keys, like Tony's, so she could go in and out at her leisure...then there IS also the abandoned house, and THAT is a BIG mystery-only one single report by Kathy B. and then NADA! after that...so what's up with that house? If it was abandoned for some length of time, heck, Casey could have BOUGHT a doorknob kit and put it in her own self EASILY and HAD a key to come and go there as she pleased. I would be very interested to know if they found any of her fingerprints there. It did appear in some of the pictures we saw of that house that there was an air mattress in there, and toys and a box of garbage bags were also identified. What if she HID Caylee there and did her "packaging" of her body in the privacy of that backyard? God! Anything is a possibility in this mess. It is most overwhelming...I am happy I am not the attorney on either side and feel sorry for those who are. It is a HUGE amount of "evidence" to go through and pin down...
but wait a minute...isn't that what WE are all doing here? Yep! So I guess I feel sorry for us too!