For those who ever harbored doubts (compliments of Dennis Rodman) about the cold and calculating leader of N. Korea can rest assured, he is a cold and calculating man.

Aljazeera news reported today, that North Korea’s leader Kim Jong-un has ordered the execution of his uncle’s entire family. The family includes children and relatives, some serving as ambassadors to Cuba and Malaysia, according to South Korea’s state news agency, Yonhap.

Jang Song-thaek, Kim’s uncle, was once a powerful North Korean military general under Kim’s father, Kim Il-sung. He was said to be the catalyst to Kim’s rise to power.

Jang was was executed last month as divisions between him and his nephew Kim widened, and until recently, was regarded as the second-most powerful figure in North Korea. The execution was based on charges he tried to overthrow the government.

Kim referred to Jang as “worse than a dog” and “human scum” in his announcement of his execution, which he said was for treachery and betreyal.

“Extensive executions have been carried out for relatives of Jang Song-thaek,” an anonymous source said to Yonhap in a report published on Sunday. “All relatives of Jang have been put to death, including even children.”

The executed relatives include Jang’s sister Kye-sun, her husband and ambassador to Cuba, Jon Yong-jin, the ambassador to Malaysia, Jang Yong-chol, who is Jang’s nephew, as well as his two sons, sources said.

The two ambassadors were recalled to Pyongyang in early December. The sons, daughters and grandchildren of Jang’s two brothers were all executed, the source told Yonhap.

One source said that some relatives were dragged out of their houses and shot in front of a crowd.

South Korea’s state news agency did not specify when they were killed.

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