South Korea's TV Chosun reported that Kim had been poisoned at the airport by two women believed to be North Korean operatives.
Malaysian police confirmed a North Korean man died at the Kuala Lumpur airport today, but say they are still investigating the man's identity. Malaysians and North Koreans can visit each other's country without visas. Police have launched an investigation into the death.
Tokola, who served as deputy chief of mission at the US Embassy in Seoul, said Kim Jong Nam has been fairly quiet in his exile, but was quoted in the Japanese media in 2010 as saying he opposed dynastic succession in North Korea.
Lawmakers from South Korea, bitter enemy of the North, said that their intelligence agencies believe this was a false alias and that the man was in fact the half-brother of North Korea's dictator.
"It reflects Kim Jong-Un's propensity for paranoia, rather than his calculated act of removing a threat to his rule".
If proven, the sanctioned assassination of Kim Jong Un's brother could further isolate a leadership in Pyongyang that is already struggling under harsh sanctions for its continued development of nuclear weapons and for widespread human rights violations.
Reuters reported that North Korean officials spent hours trying to talk Malaysia out of conducting the autopsy on Kim Jong Nam.
Kim Jong-nam was assassinated in Kuala Lumpur airport on Tuesday while on his way back to Macau from Malaysia.
The Malaysia inspector general said in a statement that a 28-year-old woman, Doan Thi Huong, was positively identified from CCTV footage and was alone at the time of her arrest.
"The other possibility that can not be ruled out is that of North Korean elites, who are competing against each other to show their loyalty to Kim Jong Un, making a move against Kim Jong Nam".
Even the United States government sources believe that the insecure North Korean dictator could be behind the attack.
Kim Jong-nam's death was consistent with past hits by North Korean assassins.
RFA: According to your research, Kim Jong Nam was viewed as a possible alternative to Kim Jong Ill.