From your own article:
It is widely believed that Kim Jong-nam was murdered on the orders of Kim Jong Un.
So, it is not factually known who really killed him (rather on behalf of whom), but that's enough to you to claim absolute power by the Kim family?
I could mention the current old king of Spain (Juan Carlos the First) murdering his brother, does that prove absolute power by the Spanish monarchy?
Also funny:
At the time of his death, Kim's backpack contained approximately $100,000 in cash
I wonder where he would find that kind of American money
"Political power comes from televised claps"
-No serious political analysis ever