They didn't believe a dozen people who said they smelled a dead body in Casey's car. DUH!
A dozen people smelled a dead body in a car, yet none of them thought to look in the trunk?
Cindy Anthony cleaned out that trunk of evidence before the police got there. Casey’s clothes in that trunk and a doll of Caylees reeked of decomposition. Cindy washed them. She was obstructing justice and tampering with evidence from the start.
People did open the trunk, DUH, and they smelled a dead body.
The smell was still there. Caylee’s body was gone. Apparently the jury believed it was the smell of garbage, as they defense suggested. There is no mistaking the smell of garbage from that of a dead body. It is a smell unlike any other, and the people that were even near the car (like in the impound lot) knew what that smell was. That is why the prosecution wanted the jury to smell the air samples from the trunk. The judge did not allow that.
You obviously don’t know much about this case.