The Execution in North Korea

If you look carefully at the videos shown of Kim Jung Un and his uncle, the uncle seems old and confused mostly, maybe with senile dementia or something. Since the way North Korean government works might be similar to the Mafia in actuality, anyone who "loses it" with senile dementia would be killed because "secrets" that could not be known would sort of slip out. So, I think he was executed to avoid "Secrets" slipping out. So, it might not be a squabble at the top but a silencing of an old man whose mind is slipping, Mafia style.