How the Yoon Suk Yeol martial law case unfolded
Prosecutors charged Yoon as the ringleader of an insurrection, alleging that he declared unlawful emergency martial law, mobilised the military and police to blockade the National Assembly and attempted to detain political figures and election commission staff. The special prosecutors sought the death penalty at first instance and again on appeal.
As of 30 October 2026 Yoon is in custody, the special prosecutors have again sought the death penalty in his insurrection appeal at the Seoul High Court, defence closings and his final statement are scheduled for early November 2026, and his seven-year obstruction sentence is final.
5 November 2026 scheduled final statement by Yoon, Seoul High Court (date per Yonhap, other reports differ)
National Assembly impeaches Yoon
Yoon is arrested, the first sitting president to be arrested
Prosecutors indict Yoon for insurrection
Indictment with detention (as reported by Al Jazeera). Yoon was indicted as ringleader of an insurrection over the martial law decree. He had been in custody since 15 January 2025.
Constitutional Court upholds the impeachment 8 to 0 and removes him from office
Decision on the impeachment of the President (as reported by Asia Economy and The Korea Times). The court upheld the impeachment 8 to 0 and removed Yoon from office, finding that the declaration ignored the constitutional governance structure and infringed fundamental rights and that no emergency justifying martial law had occurred.
Seoul Central District Court sentences him to life imprisonment for leading an insurrection
First-instance judgment in the insurrection case (as reported by CBS News). Found Yoon guilty of leading an insurrection and sentenced him to life imprisonment, finding it established that he intended to obstruct or paralyse the National Assembly. Prosecutors had sought death.
Seoul Central District Court sentences him to 30 years in the drone infiltration case
First-instance judgment in the drone infiltration case (as reported by Yonhap via The Korea Times). Convicted Yoon of benefiting the enemy and abuse of power, finding that he ordered drone flights into North Korea in October 2024 to create a pretext for martial law, and sentenced him to 30 years. His lawyers argued it was a legitimate military operation and appealed the same day.
Insurrection appeal resumes at the Seoul High Court after a recusal motion is dismissed, and the special prosecutors ask for the death penalty
Supreme Court upholds the seven-year sentence in the obstruction case
Final ruling in the obstruction case (as reported by The Korea Herald). Upheld a seven-year sentence on charges including obstructing the execution of an arrest warrant and violating Cabinet members' right to deliberate. The Seoul High Court had raised the first-instance five years to seven in April 2026.
Special prosecutors again seek the death penalty in final arguments at the Seoul High Court
Closing hearing of the prosecution in the insurrection appeal (as reported by Yonhap via The Korea Herald and by The Fact). The special counsel team again asked for the death penalty, arguing the life sentence was too lenient. The court said it would hold two further hearings, with Yoon's final statement due the following week, before setting a sentencing date.
Sources
13 records, ranked by type- 1News report26 Jan 2025South Korea prosecutors indict impeached President Yoon for insurrectionAl Jazeera · aljazeera.com
- 2News report4 Apr 2025All Justices Unanimously Decide to Remove President Yoon from OfficeAsia Economy · asiae.co.kr
- 3News report4 Apr 2025S. Korea's President Yoon Suk Yeol impeachedThe Korea Times · koreatimes.co.kr
- 4News report4 Apr 2025Korean President Yoon Suk Yeol 'regretful' after ousting from officeKorea JoongAng Daily · koreajoongangdaily.com
- 5News report19 Feb 2026Former South Korean President Yoon sentenced to life for martial lawCBS News · cbsnews.com
- 6News report25 Jun 2026Yoon insurrection appeal trial resumes at Seoul High CourtThe Financial News (Korea) · en.fnnews.com
- 7News report15 Oct 2026Yoon's insurrection appeal could see verdict by year's endThe Korea Herald · mbiz.heraldcorp.com
- 8News report9 Jul 2026First top-court ruling in Yoon's martial law-related criminal cases comes 583 days after failed declarationThe Korea Herald · koreaherald.com
- 9News report4 Apr 2025Constitutional Court upholds South Korean president's impeachmentThe Diplomat · thediplomat.com
- 10News report12 Jun 2026Ex-President Yoon sentenced to 30 years in prison in drone infiltration case (Yonhap)The Korea Times · koreatimes.co.kr
- 11News report29 Oct 2026Special counsel again seeks death penalty for ex-President Yoon over martial law declaration (Yonhap)The Korea Herald · koreaherald.com
- 12News report29 Oct 2026'내란 우두머리' 윤석열 2심 종착역…특검, 1심은 사형 구형The Fact · news.tf.co.kr
- 13News report25 Jun 2026Special counsel again seeks death penalty for ex-President Yoon on insurrection charges (Yonhap)The Korea Times · koreatimes.co.kr
Last updated 30 October 2026. Spotted an error? See corrections. Every event links to the record it comes from. Allegations are attributed to whoever made them.