Except as otherwise provided, when two (2) or more persons are criminally responsible for an offense which is divided into degrees, each person is guilty of such degree as is compatible with his own culpable mental state and with his own accountability for an aggravating or mitigating fact or circumstance.

(Code 1964 § 7.585)

     State law reference(s)--Similar provisions, RSMo. § 562.051.