From Divinity Engine Wiki
- call ItemSetOwner((ITEMGUID)_Item, (CHARACTERGUID)_NewOwner)
Changes the Owner of the item. If an item is added to a character's inventory, its Owner is set to that character
- If a character dies and they are the owner of an item, the owner of that item is cleared.
- The Owner is not to be confused with the Original Owner, who is considered to be the 'rightful' owner of that item. If the Owner does not match the Original Owner, the item is considered stolen.