Some of the information has been conflicting and contradictory, perhaps confusing him with his brother, Kim Jong-chul, who also attended school in Switzerland around the same time.
Disa nga informacionet kanë qenë kontradiktore, ndoshta duke e ngatërruar atë me vëllain e tij, Kim Jong-chul, i cili gjithashtu ka ndjekur shkollën në Zvicër në të njëjtën kohë.