About the Author
Oliver Hotham
Oliver Hotham was an NK News contributor based in Seoul, South Korea. Follow him on Twitter.
Jang Song Thaek was purged and executed because he met privately with Kim Jong Un's older brother Kim Jong Nam, Professor Kang Myong-do said on Friday.
Professor Kang, who teaches at Kyungmin University and is the son-in-law of former North Korean premier Kang Song San, told YTN that Jang Song Thaek had travelled overseas to give Kim Jong Nam his monthly living expenses in October, a journey that had made Kim Jong Un suspicious that Jang was plotting to replace him.