“From another story on this case “The prosecution claims Cervini was actually shot from behind. “
A comment from TTAG says the bullet entered under the armpit and exited out the back. This is entirely consistent with shooting from the front, and the attacker turning as they evaluate the threat.
There is action/reaction to consider. Defensive shootings tend to be dynamic situations. It is perfectly plausible for people to be shot in the back legitimately in defensive situation, because they are moving when shot at.
“It is perfectly plausible for people to be shot in the back legitimately in defensive situation...”
Makes sense. An attacker, running towards their victim and then noticing a gun pointed at them, might dodge one way or the other at the last second in an effort to avoid a shot...even twisting around. Sort of like throwing up your hands to “block” a round that is being fired at you.