Who was his competition for the top slot?
Kim Jong-un had to move ahead of two older brothers to succeed his father.
Eldest son Kim Jong-nam, born to Kim Jong-il's first wife, embarrassed his father by attempting years ago to enter Japan on a fake Dominican passport in order to, he told Japanese authorities, take his son and wife to Tokyo Disneyland. Kim Jong-nam has been living in luxury in Macao.
The second son of the “Dear Leader,” Kim Jong-chol, was widely believed to be in line for the job, but was reportedly deemed too weak for the job a few years ago.