North Korea experts say her 'extremely obese' 40-year-old father may keel over at any moment – leaving daughter at the helm of this bizarre 26 million-strong nation and, perhaps, setting off a fierce succession fight with her notoriously ruthless, 'psychopath' aunt. 'If he does not improve his current health condition, there is a strong possibility that he may develop cardiovascular disease, of which there is a family history.' Jong Un's father, Kim Jong il, died in 2011 and it is believed that he suffered a massive heart attack. Cheong Seong-Chang, an analyst at the Sejong Institute in South Korea, said...