The 45-year-old is believed to have been targeted by North Korean operatives who are still at large amid reports they attacked him either with poisoned needles or toxic spray.
Eyewitnesses say he asked for help at an airport information point before being rushed to a medical clinic in the terminal. The two attackers hailed a cab and fled.
There is already speculation that the assassination was ordered by his estranged brother, North Korean tyrant Kim Jong-Un.
Jong-nam was known to spend a significant amount of his time outside the country and had spoken out publicly against his family’s dynastic control of the isolated state.
Malaysian police have confirmed the dead North Korean man is Kim Jong-Nam and that he was waiting for a flight with a passport under the name of Kim Chol. He has been caught in the past using forged travel documents.
Police official Fadzil Ahmat said that the cause of Kim’s death had not been determined yet, but that a post mortem would be carried out on the body.
‘So far there are no suspects, but we have started investigations and are looking at a few possibilities to get leads,’ Fadzil told Reuters.