That is double jeopardy, and it is not legal to do.
Aquitted is a pronouncement of "not guilty." Not guilty is not innocent.
.... is called a law abiding citizen.
Innocent means you are innocent of a crime.. That is you did not commit it. A court (jury/judge) will not find someone "innocent". They can't say that you did not commit a crime, they can only decide for "not guilty" if the evidence presented is enough that you are believed to have committed a crime (guilty) or not (not guilty).
Innocent before guilty.
... may or may not be convicted of the crime ... At least in the USA... On the other hand if there is reasonable doubt that a person is guilty of a crime, he or she is supposed to be acquitted (which is not the same as declared innocent).
Of what crime?
I think it is morally wrong to murder someone because they have previously carried out a murder or other crime punishable by death.
The man was set free because he proved that he was innocent of the crime. he was declared innocent of any crimes by the court.
If one is tried for a crime and is found innocent, one may not be again tried for that crime because of the principle of double jeopordy.
A jury or court finds that the accused is not guilty, in reality the accused may not innocent.
Presumed Innocent
Local, state, and federal laws, as well as US Postal Regulations are being violated.