There is probably more to this story in regards to why Kim Jong-un would order his execution that has more to do with his bad posture at meetings:
North Korea has carried out the execution of a vice premier and punished two senior officials, a Seoul official said Wednesday, as the North’s leader is seeking to further strengthen his reign of terror.
The official said North Korea executed the 63-year-old Kim Yong-jin by firing squad last month after being branded as an “anti-party and anti-revolutionary element.”
He was investigated by the North’s intelligence agency due to his sitting posture shown at a key parliamentary meeting held in late June.
North Korean leader Kim Jong-un, who took power in late 2011, is believed to have executed more than 100 government and military officials, including his once-powerful uncle Jang Song-thaek, as he seeks to consolidate his oppressive rule. [Yonhap]
You can read more at the link.
