This is a list of notable inmates held at ADX Florence.
Foreign terrorists This list contains foreign citizens who committed or attempted to commit terrorist attacks against United States citizens and interests. All sentences are without parole.
Inmate name Register number Photo Citizenship Status Details 51427-054 France Serving six consecutive life sentences. French citizen and al-Qaeda operative, pleaded guilty to terrorism conspiracy charges in 2005 for playing a key role in planning the September 11 attacks by helping the hijackers obtain flight lessons, money, and material used in the attacks. 03911-000 Pakistan Serving a life sentence plus 240 years. Convicted in 1994 of terrorism conspiracy and other charges in connection with the 1993 World Trade Center bombing, which killed six people and injured more than 1,000. Yousef was also convicted in 1996 of planning Project Bojinka, a foiled plot conceived by his uncle and senior al-Qaeda member Khalid Sheikh Mohammed to assassinate Pope John Paul II and bomb twelve planes in a 48-hour period. 67495-054 Egypt Serving a life sentence under the name Mostafa Kamel Mostafa. Egyptian cleric and former associate of the late al-Qaeda leader Osama bin Laden; extradited from the UK in 2012; convicted in 2014 of masterminding the 1998 kidnapping of Westerners in Yemen and conspiring to establish a terrorist training camp in Oregon in 1999. 24079-038 Serving three consecutive life sentences plus 110 years. British national who became an al-Qaeda operative; pleaded guilty in 2002 to attempted use of a weapon of mass destruction in connection with his 2001 attempt to detonate explosive devices hidden in his shoes on a Boeing 767 traveling from Paris to Miami; known as the "Shoe Bomber". 44107-039 Nigeria Serving four consecutive life sentences plus 50 years. A Nigerian national and al-Qaeda in the Arabian Peninsula operative, follower of the late militant cleric Anwar al-Awlaki; pleaded guilty in 2011 to attempted use of a weapon of mass destruction in an attempt to blow up Northwest Airlines Flight 253 from Amsterdam to Detroit on Christmas Day 2009. He was nicknamed the "Underwear Bomber" as the bomb was sewn into his underwear. 29638-086 Algeria Serving a 37-year sentence; scheduled for release on July 1, 2032. Algerian national convicted in 2001 of terrorism conspiracy for planning to bomb Los Angeles International Airport on December 31, 1999, in what is known as one of the 2000 millennium attack plots. 27896-016 Colombia Serving a 60-year sentence under the name Juvenal Ovidio Palmera Pineda; scheduled for release on February 17, 2055. Member of the Revolutionary Armed Forces of Colombia (FARC), a guerrilla group on the U.S. State Department list of Terrorist Organizations; convicted in 2007 of terrorism conspiracy for his involvement in the 2003 kidnapping of three American military contractors. 91969-054 Kuwait Serving a life sentence. Al-Qaeda spokesman and son-in-law to Osama bin Laden. Convicted in March 2014 for conspiring to kill Americans and providing material support to terrorists. 42426-054 Sudan Serving a life sentence. Al-Qaeda co-founder and advisor to Osama bin Laden. Extradited in 1998 for participating in the U.S. Embassy bombings and sentenced to life in prison for attempted murder during an escape attempt in 2000.<ref></</ref> 28064-054 Egypt Serving a 78-year and four-month sentence (sentence shortened by 30 years from 108 years and four months, which was shortened from an initial 240-year sentence); scheduled for release on March 8, 2060. Egyptian terrorist who was one of the men convicted in the 1993 World Trade Center bombing. In 1988 he traveled to Afghanistan to receive combat training. He also assisted El Sayyid Nosair in the assassination of far-right rabbi Meir Kahane, acting as the getaway driver. 06909-091 Canada Serving a life sentence. Canadian citizen convicted of plotting to bomb U.S. embassies in Singapore and the Philippines, he was turned over to U.S. authorities after agreeing to assist them with terror investigations. He was sentenced to life in federal prison in 2008 as a result of violating the terms of his release. 55707-039 Canada Tunisia France Serving a life sentence. Perpetrator of the Bishop International Airport attack in Flint, Michigan in 2017, during which he stabbed an Airport Police Lieutenant in the neck; convicted in 2018 of committing an act of terrorism transcending national boundaries. 75868-054 Canada Serving a 40-year sentence; scheduled for release on September 10, 2051. Plotted to carry out bombing attacks at Times Square and on the New York City Subway. Convicted of material support and conspiracy to commit terror acts transcending national boundaries in 2016 and sentenced to 40 years in federal prison in 2018. El Bahnasawy was sent to ADX after he committed the stabbing of corrections officer Dale Franquet Jr at United States Penitentiary, Allenwood on December 7, 2020. Franquet lost an eye in the attack. 79827-054 Bangladesh Serving a life sentence plus 30 years. Bangladeshi national who partially detonated a pipe bomb between the Times Square–42nd Street and 42nd Street–Port Authority Bus Terminal stations of the New York City Subway. The blast injured three bystanders and the perpetrator. Ullah was convicted of possessing a criminal weapon, making terroristic threats, and supporting an act of terrorism in 2018 and sentenced to life in prison plus 30 years in 2021. 33405-016 Libya Serving a 28-year sentence; scheduled for release on May 21, 2038. Libyan national and leader of Ansar al-Sharia, led the Benghazi attacks against two United States government facilities in September 2012. Ansar al-Sharia members attacked a diplomatic compound on September 11, 2012, that resulted in the deaths of the U.S. Ambassador to Libya J. Christopher Stevens, and U.S. Foreign Service Information Management Officer Sean Smith. Additionally, a mortar attack was carried out against a CIA annex that resulted in the death of two more U.S. diplomats. Abu Khatallah was convicted of conspiracy to provide material support for terrorism, maliciously destroying and injuring dwellings and property, and using and carrying a semi-automatic weapon during a crime of violence. Another participant in the attack, Mustafa al-Imam was also charged and convicted of offences related to the attack and was sentenced to 19 years in prison in 2020. In 2024, Khatallah's sentence was increased by 6 years. 84991-083 Russia Serving a life sentence plus 30 years. A former member of the Russian army, Hamidullin eventually traveled to Afghanistan where he was discovered fighting for the Taliban after he led insurgents to attack Camp Leyza, a military installation where U.S. and Afghan forces were stationed. Hamidullin was held in extrajudicial detention before being tried in federal court where he was convicted on 15 counts including material support, attempted murder of U.S. military personnel, conspiracy to use a weapon of mass destruction, and possession of a firearm in connection with a crime of violence. 81678-053 Niger France Serving a life sentence under the name Adnan Ibrahi Harun A. Hausa. Al-Qaeda operative from Niger who was convicted of conspiracy to murder American military personnel in Afghanistan, conspiracy to bomb the U.S. Embassy in Nigeria, and providing material support to terror organization. Harun was recruited into al-Qaeda in the weeks before the September 11 attacks and traveled to Afghanistan to train al-Qaeda camps. Harun was one of several al-Qaeda soldiers to ambush a U.S. Military patrol on April 25, 2003, killing servicemen Jerod Dennis and Raymond Losano. Harun was also ordered to commit a bombing attack against the U.S. Embassy in Nigeria by al-Qaeda leaders. Harun was sentenced to life in prison in February 2018. 11685-509 United KingdomSudan Serving eight concurrent life sentences each. Former British citizens and members of the 'ISIS Beatles' known as "Jihadi George" and "Jihadi Ringo" respectively, sentenced to eight concurrent life terms without the possibility of parole in April and August 2022 for charges of conspiracy to commit murder, lethal hostage taking, and material support. These charges stemmed from their participation in the beheadings of American, British, and Japanese citizens while active members of the Islamic State. Kotey and Elsheikh directly participated in the negotiations and killings of James Foley, Peter Kassig, Steven Sotloff, and Kayla Mueller. 11698-509 United KingdomSudan 79715-054 Uzbekistan Serving ten life sentences plus 260 years. Uzbek national who perpetrated the 2017 New York City truck attack, in which he drove a pickup truck rented from Home Depot through the protected bike lane of Hudson River Park in Manhattan, killing eight people and injuring eleven others. The incident was considered the deadliest terrorist attack in New York City since the September 11 attacks of 2001. Saipov committed the attack in the name of Islamic State. The death penalty was sought for Saipov; however, he was sentenced to life imprisonment in May 2023, after a jury failed to reach a unanimous decision on the matter.
Domestic terrorists This list contains U.S. citizens, regardless of origin, who committed or attempted to commit terrorist attacks against United States citizens and interests.