Muhammad Youssef Abdulazeez (1990-2015) was an Islamist extremist who opened fire at two military sites in Chattanooga, Tennessee on July 16, 2015, killing four Marines and a Navy sailor. Abdulazeez, a Kuwaiti-born U.S. national, is believed to... Read more

Mujahid is the Arabic term for someone undertaking jihad. Many Islamist extremists will refer to themselves as the mujahideen (the plural of mujahid) to evoke religious meaning to their violence. In particular, this term is used to... Read more

Mullah Mohammed Omar (1960-2013) was the founder of the Taliban. He was born in Khakrez, Afghanistan in 1960. Starting in 1994, the Taliban began to seize large parts of Afghanistan, and Mullah Omar was appointed as head... Read more

Najibullah Zazi is an Afghan-American who drove from his home in Colorado to New York City on September 9, 2009 with the intention of detonating explosives above the New York City subway during rush hour as part... Read more

Nikolas Cruz is the perpetrator of the Parkland, Florida shooting at Marjory Stoneman Douglas High School, where he was a former student. He killed 17 people and wounded 17 others. Following the shooting it was revealed that... Read more

Benjamin Smith was a white supremacist who committed a racially motivated shooting spree in Indiana and Illinois in 1999. He killed two people and seriously injured eight others, including six Jews leaving synagogue services. He was a... Read more

Omar Shafik Hammami (1984-2013), aka Abu Mansoor al Amriki, was an American foreign terrorist fighter who traveled to Somalia to join al Shabaab. Hammami was raised as a Christian in Alabama and converted to Islam sometime during... Read more

The optics debate refers to a debate among white supremacists about whether it is better to promote their white supremacist ideology via overtly National Socialist symbolism (swastikas, for example), or with less overtly racist imagery (including American... Read more

Osama bin Laden (1957-2011) is perhaps the most influential and infamous terrorist leader in history. He originally became involved in the jihadist sphere when he traveled to Pakistan from his home in Saudi Arabia to help organize... Read more