What's interesting is that it wasn't really what he said before. A while back, he was in some sort of article where he said that he personally believed there was enough evidence given at trial to convict Casey of first degree murder. I suppose he could have been talking about felony murder though...
He also mentioned hearing four letter words being screamed in rage from the holding cell when Cheney Mason went in there attempting to convince Casey to take a plea.
Aside from that, I had my doubts about Judge Perry when I saw the way he was rushing jury selection. He inexplicably sat a woman on that jury who the State had every right to strike, because she stated that her "religion didn't allow her to judge other people."
IIRC, Baez or Mason objected, claiming the State was trying to strike her due to racial bias (she was black) and Judge Perry agreed and refused to allow the State to strike her. Even the defense had this surprised look on their faces like "I can't believe that worked." The whole thing was bizarre.
Either way, that woman ended up on the jury and I doubt she was much help.
The sad thing is that I don't think Judge Perry had any sort of nefarious motive when he did so. He just got complacent and wanted to rush jury selection along as fast as he could and start the trial. I think he figured that no one in their right minds would look at the evidence against Casey and decide that she bore no responsibility for what happened to Caylee.