The Government of Kyrgyzstan abolishes capital punishment.
- A Guantanamo military commission charges detainee Riduan Isamuddin for his roles in the 2002 Bali bombings and the 2003 Marriott Hotel bombing. The Pentagon is yet to decide whether to threaten capital punishment.
- A court in the Indian city of Mumbai convicts and sentences Ankur Panwar to the death penalty for a fatal acid-throwing attack.
- Pope Francis calls for a worldwide ban on the death penalty and urges Christian leaders to work to stop executions as part of the church's Holy Year of Mercy.
- Pope Francis becomes the first Pope ever to address a Joint Session of the United States Congress. Afterwards, he greets onlookers at the National Mall. He addresses many issues: abortion and the sanctity of life, the importance of the family and of marriage, climate change, immigration and the refugee crises caused by global unrest, proper business conduct, and worldwide abolition of capital punishment.
- The Tunisian parliament approves a new anti-terror law that allows the death penalty for terrorists.
- The Supreme Court of the United States upholds the use of capital punishment by lethal injection involving midazolam.
- Following the December 17 announcement that it would lift its moratorium on terror-related death penalty cases, Pakistan announces that it will execute 500 militants in the coming weeks.
- After an eight-year informal moratorium on the death penalty, Jordan executes 11 men.
- Pakistan lifts the moratorium on the death penalty for terror-related cases following the Taliban's assault on a school in Peshawar on Tuesday that killed 141, including 132 children.
- The U.S. state of Maryland abolishes capital punishment for future offenders.