re: HBO Docs: The Case of the Cannibal Cop Premieres Tonight at 9PM EST

It made my skin crawl to see the defense team smiling ear to ear whenever he got the conviction overturned.

How can a judge overturn a verdict on evidence anyway? that's the whole point of a trial, no? It's one thing if something was done to compromise the fairness of the trial or evidence was in admissible or something, but just letting a judge throw out a verdict based on his own thoughts on the case just seems wrong to me.