At the final battle of the Grateful Death arc, we could see Buccellati confronted Pesci and his stand: Beach Boy using Sticky Fingers. At the end of the battle, Buccellati attacked Pesci repeatedly and suddenly Pesci was ripped apart into pieces. How could this happen? I thought that Sticky Fingers ability was to make a zipper in an object and could open and close the zipper so Buccellati could make a hole inside that object.
When he undid Sticky Fingers' ability, the pieces would normally return to the foe's body, without the body getting ripped apart. But in Pesci's case, it seems the torn part didn't return back to his main body parts. This is the scene where Pesci was ripped apart by Sticky Fingers