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South Korea’s ex-president Yoon Suk Yeol handed life sentence for leading insurrection

Prosecutors had called on Yoon to receive a death sentence for his 2024 martial law bid

South Korea’s former President Yoon sentenced to life in prison on insurrection

Former South Korean president Yoon Suk Yeol has been sentenced to life imprisonment after he was found guilty of rebellion and abuse of authority over his failed attempt to introduce martial law.

Prosecutors had demanded the death penalty for Yoon’s 2024 bid to impose martial law via military force, paralysing the legislature and arresting political opponents.

In a hearing broadcast live on national TV, the Seoul Central District Court said the martial law attempt by Yoon amounted to insurrection and that Yoon caused fundamental harm to South Korea’s democracy.

Judge Jee Kui Youn said he found Yoon “guilty of rebellion for mobilising military” and police forces in an illegal attempt to seize the liberal-led National Assembly, arrest politicians and establish unchecked power for a “considerable” time.

A screengrab shows Yoon Suk Yeol at his sentencing hearing in Seoul Central District Court
A screengrab shows Yoon Suk Yeol at his sentencing hearing in Seoul Central District Court (Reuters)

Thursday’s ruling makes Yoon the first former South Korean leader to receive the maximum custodial sentence. The martial law episode plunged the country into deep uncertainty and sparked huge street protests, though it was ended after six hours when MPs regained control of the National Assembly.

At that time, Yoon claimed he took that step because of “anti-state forces” and a threat from North Korea.

The former president, who attended the hearing, maintained a straight face as a judge held him guilty and announced the verdict.

Yoon denied all the charges against him, describing the case as politically motivated. Himself a former prosecutor, he argued that he had the constitutional authority to declare martial law as a counter to what he called obstruction of his administration by opposition parties.

Supporters of South Korea’s impeached former president Yoon Suk Yeol watch the trial via livestream near the Seoul Central District Court
Supporters of South Korea’s impeached former president Yoon Suk Yeol watch the trial via livestream near the Seoul Central District Court (AFP via Getty)

But prosecutors said Yoon had masterminded an insurrection, saying that his “unconstitutional and illegal emergency martial law undermined the function of the National Assembly and the election commission... actually destroying the liberal democratic constitutional order”.

The judgment in Yoon’s highly divisive case comes just over 14 months after the events of 3 December 2024, when his declaration of martial law sparked chaotic scenes in Seoul and beyond. Soldiers initially tried to block lawmakers from entering parliament, but eventually 190 MPs – a slim majority – managed to push past the military cordon and pass an emergency resolution overturning Yoon’s order.

The episode sent shockwaves through South Korea, Asia’s fourth-largest economy and a country long regarded as one of the world’s most resilient democracies.

Yoon was suspended from office and impeached by parliament within 11 days, and four months later, the Constitutional Court formally removed him from office.

He has been under arrest since last July while facing multiple criminal trials.

Yoon’s lawyer denounced the verdict, saying it was not backed by evidence, and also accused the judge of following a pre-scripted verdict before delivering the sentence.

Yoon supporters react as the former president is sentenced to life for his attempt to instate martial law in 2024, a move that prosecutors saw as masterminding an insurrection
Yoon supporters react as the former president is sentenced to life for his attempt to instate martial law in 2024, a move that prosecutors saw as masterminding an insurrection (AFP via Getty)

“Watching what appears to be a collapse of the rule of law today, I am compelled to question whether we should proceed with an appeal or continue to participate in these criminal proceedings at all,” Yoon Kab Keun told reporters outside the Seoul courthouse.

He said he will consult with Yoon before determining the next course of action.

Yoon, along with others convicted in the case, can now choose to appeal their sentences.

In the hearing, the court also convicted Yoon’s allies, including ex-defence minister Kim Yong Hyun and former intelligence commander Roh Sang Won.

And the court sentenced law enforcement officers, including former police chief Cho Ji Ho, former Seoul Metropolitan police chief, Kim Bong Sik, and former head of the National Assembly police guards Mok Hyun Tae.

Security was tightened around the court complex ahead of the verdict, with a heavy police presence deployed as supporters of Yoon Suk Yeol gathered outside.

After the life sentence was announced, emotions ran high among his backers. Some shouted in protest while others were seen in tears.

Supporters of the impeached former president outside the court house, who reacted with intense emotion when the verdict was announced
Supporters of the impeached former president outside the court house, who reacted with intense emotion when the verdict was announced (AFP via Getty)

One supporter allegedly struck a cameraman from local broadcaster KBS with a flag as he stood on a platform covering the ruling, BBC reported. Police quickly intervened and escorted the man away from the scene.

Though Yoon could have faced a maximum penalty of the death sentence, analysts had considered it unlikely. South Korea last handed down a death sentence in 2016 and hasn’t actually executed a death row inmate since 1997, in what is widely seen as a de facto moratorium on capital punishment amid calls for its abolition.

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