South Korean prosecutors have escalated their pursuit of former President Yoon Suk Yeol, demanding the death penalty in an appeals court hearing on Thursday for his role in a dramatic failed coup attempt that briefly plunged the nation into chaos.
The special counsel team, headed by Cho Eun-suk, presented their case before the Seoul High Court, where Yoon is challenging a life imprisonment sentence handed down in February. The former leader was convicted of insurrection after his shocking declaration of martial law in December 2024, an emergency measure that lasted mere hours before lawmakers successfully blocked and reversed it.
The martial law episode represents one of the most turbulent moments in recent South Korean democratic history. On December 3, 2024, Yoon suddenly imposed military rule, triggering immediate resistance from the National Assembly. Legislators moved swiftly to overturn the decree, preventing what prosecutors argue was an attempted insurrection against constitutional order.
This marks the second time prosecutors have sought capital punishment for Yoon, having first requested the death penalty in January. The aggressive legal strategy underscores the severity with which authorities view his actions and their determination to hold him accountable at the highest level.
Yoon’s legal troubles extend far beyond the martial law case. He currently faces eight separate trials covering allegations ranging from his wife’s purported corruption to his handling of a 2023 marine officer’s death. The breadth of charges paints a picture of mounting scandals that ultimately contributed to his downfall.
In April 2025, South Korea’s Constitutional Court delivered a unanimous decision upholding Yoon’s impeachment, formally stripping him of office and triggering snap elections. The ruling represented a definitive rejection of his presidency and his controversial actions.
Following his life sentence in February, Yoon issued a statement through his legal team expressing regret for the “frustration and hardship” his martial law declaration caused ordinary citizens. However, he maintained that his intentions were sincere and defended the underlying purpose of his actions, even while apologizing for the consequences.
Yoon has consistently characterized the legal proceedings against him as politically motivated retaliation rather than legitimate justice. He described his life sentence as “predetermined” and suggested the verdict was driven by partisan revenge rather than factual evidence.
The case now rests with the Seoul High Court, which must decide whether to uphold the life sentence, reduce it, or potentially impose the death penalty as prosecutors demand. The outcome will set a significant precedent for how South Korea handles cases of alleged insurrection by its highest officials.
For a nation that has experienced military coups and authoritarian rule in its past, the Yoon case represents a critical test of democratic accountability and the rule of law in modern South Korea.
