The Official Code of Georgia has provisions under which a defendant can be charged with a murder even if the accused did not actually commit the crime.
A portion of Title 16 states that:
(A) Every person concerned in the commission of a crime is a party thereto and may be charged with and convicted of commission of the crime.
Under Georgia law, the state does not have to prove the applicability of this section in the accusation. It must be proven, though, at trial.