My reading of the testimony has been pretty limited but..
1.Being a ****** parent does not mean she murdered the kid. It couldve been an accident and she panicked. It couldve been her dad and she felt compelled to try to cover for him for whatever reason. She may be very disturbed to not do anything when her child disappeared, but that does not prove her guilt in a murder.
2. Couldve been anyone with access to that computer, and i believe there was testimony from someone (her mom?) claiming those searches.
3. Does not point directly to casey necessarily.
4. An article i read yesterday said that there was also testimony from those saying there was no smell.
Do signs point to her? Absolutely. But justice isnt done by proclaiming guilt over those who just have signs pointing to them, even a large number. Our system is set up intentionally with the standard of reasonable doubt, to err on the side of not guilty in order to minimize the number of innocent defendants that are convicted. And that is a good thing. We have seen too many times when a prosecutor or police department focuses in on one single suspect, ignores other avenues, and then railroads a defendant, only to find out they didnt\couldnt've done it through new evidence or testimony.