Kim Jong Un's Half-Brother Murdered in Malaysia, Yonhap Says

North Korean leader Kim Jong Un inspects the construction site of Ryomyong Street in this undated

Two women poisoned Kim Jong Nam, a 45-year-old who at one point was being groomed to take over North Korea once his father died, Monday at an airport in Kuala Lumpur, according to South Korea's TV Chosun.

"Kim Jong Nam reportedly has been Beijing's favorite, which may mean one day the Chinese Communist Party may overthrow Kim Jong Un and install Kim Jong Nam", said Lee Sung-yoon, a North Korea expert at Tufts University's Fletcher School of Law and Diplomacy. A police statement said he sought medical aid at the airport's customer service and died en route to hospital.

Media reports in 2015 claim that North Korean spies tried to kill Jong-nam in Macau in 2011. But he fell into disgrace in the early 2000s after he was caught in Japan on a fake passport trying to go to Tokyo Disney. He was believed to have been living recently in Macau, Singapore and Malaysia.

"Investigation is in progress and a post-mortem examination request has been made to ascertain the cause of death", he said. The incident, coupled with the rumored defection of Kim's mother (she died in Russian Federation in 2002), led to his estrangement from his father.

"I hope my younger brother will do his best for the sake of North Koreans' prosperous lives", he reportedly said.

In Kuala Lumpur, a government official said that workers and the police at Kuala Lumpur International Airport had found a man who was ill on Monday and that he had died after being taken to the hospital.

Rumors have swirled for years that Kim Jong-un wanted to have his half-brother killed.

His parents: Kim is the son of Kim Jong Il, who was the supreme leader of North Korea between 1994 and 2011, and Ko Yong Hui, a consort.

In the past, Kim Jong-Un has allegedly executed senior advisory officials in an effort to more tightly seize power in the secretive and authoritarian state.

Kim Jong-Nam is the son of Song Hye-Rim, a South Korean-born actress who is believed to have been a mistress of former North Korean leader Kim Jong-Il. From the moment he was he began appearing in public, Kim Jong Un has emphasized striking similarities with his grandfather like gaining weight, wearing the same eyeglasses and even having an identical haircut. It's thought that North Korean dictator Kim Jong-un was nervous about his half-brother potentially constituting a rival power center, and may have offed him.

There was no such report on North Korea's tightly controlled media.

"The police is still uncertain about the real motive of the case", he said. It's unclear what positon he has in the North Korean government.

He was a known advocate of reform in North Korea and was vocal about his opposition to the nation's dynastic succession policy.

He also had voiced disapproval of his family's control of the country. It follows the defection a year ago of a senior diplomat from the North Korean Embassy in London who has spoken of his despair at Kim's purges.

It said the women hailed a cab and fled immediately afterwards. But it's widely believed Kim Jong-Un saw his older half-brother as a threat to the regime.

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