Mo. Rev. Stat. § 562.051
Except as otherwise provided, when two 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.
(L. 1977 S.B. 60)
Effective 1-01-79
*This section was amended by S.B. 491, 2014, effective 1-01-17. Due to the delayed effective date, both versions of this section are printed here.