Handsome sorcerer dropped weapon before being finished

one hour ago I farmed the Handsome sorcerer for some weapons.
After I finished the first stage(the regular Handsome Sorcerer I see a Skullmasher at the point where I just shot the Sorcerer himself, and a bunch of his minions(the weaker sorcerers). I haven´t beaten him previously in this session, and there were no other drops of any kind int the arena.
I wanted to know if the sorcerers thamselves(or the things they spawn in) can drop loot in general, because all the other loot drops in that fight are just spawned in the sky.

Of course they can, they’re enemies.