Far too many innocent people have been exonerated, many of whom would have been murdered by the state.
Excuse me .. these exonerations are coming from cases dated back through the 1980-90's .. DNA testing wasn't even available then. Many of these cases involve sex crimes, not felony murder cases. Hopefully they will be able to clear all those who have been wrongfully convicted, but we now have cutting-edge forensics, crime scene investigation, as well as video surveillance systems at our disposal. If anything, the evidence against the accused will be more convincing/absolute.