Baldwin shot Hutchins. There is no getting around that. That should be manslaughter right there.
The only questions remaining to be answered are how a live cartridge got into the cylinder and how the live chamber was indexed so that it would come into battery when the revolver was cocked.
Exactly. Most lib-inspired gun-laws say very clearly - if you are holding the gun, you are responsible for whatever happens when that gun discharges.
Maybe getting close to the question is: Was it a horrible coincidence or did one or more person arrange for it to happen. Then there’s the question of motive.