Sudden Jihad Syndrome
Sudden Jihad Syndrome is a term coined by Daniel Pipes to describe Muslims that suddenly or unexpectedly turn against civilized, Western society and engage in acts of terror. . Pipes has argued that due to this phenomenon all Muslims must be considered potential terrorists. 
- John Allen Muhammad and Lee Malvo, the so-called Washington snipers. John Allen Muhammad was a Muslim convert, but some people allege that his motivations may not have been religious.  
- Ali Hassan Abu Kamal, a Palestinian school teacher who engaged in a shooting rampage on top of the Empire State Building. He killed one and wounded six before taking his own life.
- Mohammed Reza Taheri-azar, an American Muslim born in Tehran who ran over students at the University of North Carolina to punish the United States. Taheri-azar was the first terrorist to be explicitly called an example of Sudden Jihad Syndrome by Daniel Pipes.
- Mujtaba Rabbani Jabbar who shot up a movie theater in Baltimore.
- Rashid Baz, a Lebanese can driver living in New York City who shot at a van full of Orthodox Jews. . In a burst of political correctness, the FBI initially refused to label this act a terrorist act.
- Sulejman Talovic, a Bosnian Muslim, opened fire in a Salt Lake City mall, killing five people before being shot dead by police.
- Abdulhakim Mujahid Muhammad murdered one at an Arkansas Army recruiting center in June 2009.
- Nidal Malik Hasan, perpetrator of the Fort Hood Massacre in November 2009.
- Dzhokhar and Tamerlan Tsarnaev, Chechen Muslim immigrants, set off a bomb at the April 2013 Boston Marathon killing three spectators and injuring hundreds before being subdued.
- Elton Simpson and Nadir Soofi, Muslims, attempted to massacre the participants in a free speech event in Garland, Texas in May 2015, but were thwarted by a police officer who succeeded with deadly force against them.
- Muhammad Youssef Abdulazeez, a member of a Palestinian Muslim family, who in July 2015 suddenly murdered five servicemen in Chattanooga, Tennessee before being shot down by police himself. This action moved Franklin Graham to publicly state "Muslim immigration needs to stop."