For the reasons described above (revolvers being rendered obsolete in some ways by modern semi-automatic pistols), my sense is that a lot of gun-owning households have old revolvers gathering dust on top of the armoire or (preferably) in the back of the the gun safe.
That leads me to suspect that the shooter, who did not seem at all proficient with the weapon, "borrowed" the revolver from family storage with the expectation that no one would miss it. The shooter would then discard the weapon in a random trash can and and assume that they would not be connected to the crime via ballistics.
That leads me to suspect that the shooter, who did not seem at all proficient with the weapon, "borrowed" the revolver from family storage with the expectation that no one would miss it. The shooter would then discard the weapon in a random trash can and and assume that they would not be connected to the crime via ballistics.