Ohio law states - "The people have the right to bear arms for their defense and security; but standing armies, in time of peace, are dangerous to liberty, and shall not be kept up; and the military shall be in strict subordination to the civil power.
If he used the gun when the person was no longer a threat, and the person was no longer committing a crime, then he is a murderer, and wasn't defending SHIT. IT'S NOT ROCKET SCIENCE LOL
And yes, if the person committed a crime then that cost to house them needs to be added to whatever budget that comes out of, since those criminals are also guaranteed the right to trial by due process.
Everyone here who values their rights should understand why we have them, and not be happy when someone abuses the law using the rights we hold dear (which should be ALL of them).
Edit:If the guy is still alive, then remove 'murder' and what not and replace it with whatever applies.