The same was once said of Saddam Hussein. Where is he now? And could still live if not put itself above God. The same fate awaits Kim Jong-UN.
And much of his army was a bunch of tubby chancers. The North Koreans are indoctrinated from birth. They're on a never ending war footing and they believe that the US has always been the ultimate evil.
They're a short cruise from Seoul and they have enough cannon fodder to throw away to cause an insane amount of damage.