Exactly. The system is supposed to work that way, but clearly it doesn't... at least not always. People act as if DNA is this new thing that is overturning convictions and that convictions were never overturned for other reasons before DNA testing was conceived. History is filled with wrongful convictions, some of which were overturned without DNA testing... now DNA testing is overturning some... and eventually we'll find some other thing that can be used to identify criminals. I see no rush to execute IF there are viable defense motions and new evidence to process. We shouldn't be in such a rush to kill people. It's no longer about justice if you are in a hurry to do it.