Shouldn't be what we're looking at.
Yes, there should be some retribution from society for the loss of ones life, one's life with others, one's ability to make it or not, one's freedom. This is measured in the millions.
But a larger part that would give satisfaction to society and to the unjustly accused is to see every person that played an active part in denying due process of law, hiding evidence, lying to investigators, the investigators, the judges, the lawyers and other officials that purposefully and knowingly subverted justice - these are the ones that should be punished in a way that will deter them, or anybody else that wants to follow in their footsteps.
The perpetrators of this hoax of justice should pay the penalty. Any life they have left in their bones should be spent behind bars. Any income/bribes they made while dishonoring an innocent person should be paid out of their assets including those transferred to progeny.
Maybe I'm ranting on (my want) but this country (and most) don't hold the powers-that-be to enough scrutiny. Wall Street crooks, police departments, governments from high to low. It's only us defenseless peons that have to cough up the fines and have to spend the time.