Missouri Revised Statutes
Chapter 563
Defense of Justification
Section 563.031
MRS 563.031.
1. A person may, subject to the provisions of subsection 2 of this section,
use physical force upon another person
when and to the extent he or she reasonably believes such force to be necessary to defend himself or herself or a third person from what he or she reasonably believes to be the use or imminent use of unlawful force by such other person ...
2. A person
may not use deadly force upon another person under the circumstances specified in subsection 1 of this section
unless:
(1) He or she reasonably believes that such deadly force is necessary to protect himself ... or another against death, serious physical injury, or any forcible felony;
[EDIT/Note: escaping
after having committed a forcible felony ISN'T mentioned.]
...
5. .. If a defendant asserts that his or her use of force is described under subdivision (2) of subsection 2 of this section,
the burden shall then be on the state to prove beyond a reasonable doubt that the defendant did not reasonably believe that the use of such force was necessary to defend against what he or she reasonably believed was the use or imminent use of unlawful force.