An expert believes strange marks on Kim Jong-un's head may reveal a dependence on medicinal drugs due to being in agony.
The leader of North Korea was spotted last week with a large black mark on his head, not the first time he had been seen with such a blemish.
Michael Madden, a leading expert on North Korea’s elite, said there were a couple of possibilities and that "bruising from receiving injections" may be the reason.
