Yong is from the state of Sabah, Malaysia. Yong Vui Kong (born 23 January 1988) is a Malaysian citizen of Hakka descent who was sentenced to death in Singapore for trafficking more than 15 grams of heroin in 2007. Personal life. His sentence was reduced to life imprisonment and caning as a result of Singapore's amendments to the Misuse of Drugs Act.. Yong Vui Kong v. Public Prosecutor was a seminal case decided in 2010 by the Court of Appeal of Singapore which, in response to a challenge by Yong Vui Kong, a convicted drug smuggler, held that the mandatory death penalty imposed by the Misuse of Drugs Act (Cap. His sentence was reduced to life imprisonment and caning as a result of Singapore's amendments to the Misuse of Drugs Act.. Personal life Edit. Yong Vui Kong (born 23 January 1988) is a Malaysian citizen of Hakka Chinese descent who was sentenced to death in Singapore for trafficking more than 15 grams of heroin in 2007. Everything you need to know about Malaysian drug courier Yong Vui Kong in 60 seconds. 185, 2001 Rev. Yong became the first drug trafficker to escape the death penalty under the revised law. Ed.)