Not sure what set you off with bofh's first post in this thread, but, though I find the hypothetical scenario too vague to attempt an answer to, I have thought while reading this thread that there are several states where it would be *legal* to fire on a fleeing felon, especially in one's home, and I'd say
it appears that MS is one such state. I believe my state, Alabama, most likely is one too. But the problem is that answering the *legal* question isn't adequate for most people to hang their hats on. Most people want to know what the *right* thing to do is, not just the *legal* thing, and quite often, no lines intersect in the arc of either of those evaluations.
I think Castle Doctrine laws are a great thing. I'm glad that they have proliferated to the extent they have in recent years. What I get from most of them, including MS's, is that legally-speaking, the person claiming defense as the basis for opening fire on another human being has the *legal*
presumption of justification in the eyes of the law. That presumption carries with it several benefits in MS, including immunity from civil action and restitution of legal expenses if the shooter must defend himself in either civil or criminal court and is found justified. That's pretty strong as Castle Doctrine laws go, but a presumption is still no guarantee, and neither is immunity if/when one is
not found justified. Even under a fairly objective statutory presumption of justification to shoot, one must still fall under the more subjective test of the "reasonable person" doctrine, which seeks to put everyone responsible for deciding how to charge, try, or convict a given defendant in the position of being a reasonable person and deciding what they'd do in the same circumstance. MS is no exception. There are five allusions to reasonableness in the link above.
I find Reba's and bofh's positions on not shooting under "iffy" justifications to be quite reasonable. Speaking only about legalities, I find it quite likely that many prosecutors, judges and juries in MS would deem it reasonable under the statute linked above to shoot any one at any time who had feloniously broken and entered a dwelling. "Likely" and "many" are words that demonstrate the subjective nature of the "reasonable person" doctrine though. Reba and bofh would virtually never get in any legal trouble maintaining their position as thus-far stated in this thread. Thomas0792 might for shooting someone who was running away, even though the statute does have provisions for fleeing felons, but those provisions are diluted to a lesser or greater degree by the reasonable person doctrine. I personally have a hard time putting my life in other "reasonable person's" hands, so bereft of such types is the human race that it seems nearly a suicide mission to engage in.
There are legal questions, moral/ethical questions, and questions that may or may not overlap either category. I just know this: I ain't gettin' in trouble for letting someone run away, while I might for shooting them while running away even though my Castle Doctrine also gives me the presumption of justification for several other-than-deadly-or-great-bodily-injury evaluations.
The absolute best way to arrive at an answer to the OP's original question is to go through competent, professional shoot/don't shoot training, and take the word of the experts whom you paid good money to advise you about when it's right/not right to shoot another human being. I categorically reject the notion that "we're better off shooting first, asking questions later." Whether "legal" or not, if it ain't right, it ain't right. Shoot/don't shoot drills, combined with the expert advice I paid in advance for, juxtaposed against the subjective nature of the reasonable person doctrine, have all taught me that shooting someone who is running away from me, just ain't right.
Blues