Gio pings as an artificial life form with some kind of dog-entity-thingy in his Spine.

Obvs he pings for tragic backstory-- he has hurt people he loved, they have hurt him, sibling massacre occurred, sees himself and is treated as an object rather than a person by his maker, shunned/derided/disliked etc by his maker, you know the drill.

He also DOES hurt people for shitty reasons, those reasons being 'for fun' or can't control himself...but those reasons are complicated and are conditioned into him and come with underlying issues rather than him doing it purely because he wants to.