Kim Myong-chol, executive director of The Centre for North Korea-US Peace, told The Telegraph on Wednesday that the man killed in Kuala Lumpur on Monday is not the half-brother of North Korean dictator Kim Jong-un.
In addition to the North Korean man, two women who are alleged to have carried out the attack - a 28-year-old with Vietnamese travel documents and a 25-year-old with Indonesian documents - have been arrested.
When a JoongAng Ilbo correspondent called Abdul Samah Mat, police chief of Selangor, for a timeline, he did not provide one. The police officials have also arrested a fourth suspect, a North Korean man, linked to Jong-nam's assassination.
The Malaysian authorities are still investigating the case.
South Korea has accused its enemies in North Korea of dispatching a hit squad to kill Kim Jong Nam at the airport, saying two female assassins had poisoned him and then fled in a taxi.
Kim's next of kin have priority to claim the body, but if no such claim is made, it could be released to the embassy, he said.
A auto belonging to the North Korean embassy was seen entering the compound of the police headquarters about 4.15pm which intensified speculation that embassy representatives were meeting the fourth suspect detained in its lock-up.
Kim Jong-nam died February 13..
Surveillance images at the airport released after the assassination showed one of the suspects wearing a shirt with "LOL" on it.
"This is all being done to divert attention from the impeachment of the South Korean president and to discredit North Korea", he said.
"The post-mortem has been completed, but the post-mortem results have not been released yet", he said when contacted by Bernama News Channel (BNC) here today. South Korean and USA officials have said he was assassinated by North Korean agents.
The Kim family is deified in the all-encompassing state media, which reports on the "respected leader's" great feats, while Pyongyang actively tries to block any outside information that would reveal to North Koreans that they do not, in fact, live in a "people's paradise".
Malaysia said Friday it wants DNA samples from Kim Jong Nam's family as part of the post-mortem procedure and that officials were not yet willing to hand the body over to the North Koreans. Two male suspects remain at large.
His assassination, therefore, was a result of Kim Jong-un's "delusional disorder", he added. Minutes later, Kim fell ill, sought help and died while being rushed to the hospital.
"Police say they are zooming in on the identities of three operatives from North Korea", NST said.
Malaysian media cite government sources saying the closed-circuit footage caught two women approaching Kim.
Until 2001 he was the expected heir to his father but a bungled attempt to enter Japan.