The Cell phone pings were brought up but I guess the jury were napping, even Ashton mentioned in one of the interviews, they saw the cell phone pings that put casey in the area near her house, and yes they mentioned that it was enough time, therefore Asthon thought that they jury didn't do their job and they could had asked all questions if they weren't sure.
They also talked about the shovel, but again the jury were in mars.
About the tape, well they thought it would be UNFAIR, WHY???

I don't understand, the whole trial was about poor KC, like if the victim was her!