And by being found not guilty he is...not guilty. Whether he actually did it or not, he was found not guilty of this crime and CANNOT be punished for it. That's the linchpin of due process...the part where you have a trial by jury and if found not guilty you're not guilty and if found guilty you are guilty.
Flip it around, George Zimmerman was found not guilty or murder/manslaughter, and he definitively shot Trayvon Martin to death. We've got a whole multi-hundred page thread about how people are still trying to punish him for a crime he was found not guilty of and how it sickens many of us, because he's not guilty of murder or manslaughter.
Due Process.
It's the ONLY thing separating us from the animals.