Personally all these people who are coming up with hairbrained reasons why Casey is innocent is what is fueling the fire of the parents' denial. Why do you all chose to ignore what is already known about this case?
I think investigating from all angles can be very useful in proving and disproving a case. I'd rather see thorough investigating than a rush to judgment.
And for the record, I believe Casey is responsible for the death of Caylee. However, I want a conviction for the perpertrator and that will only happen with a solid case.