Law enforcement officers walking to the scene of a shooting at a shopping mall in El Paso, Texas, on Saturday, Aug. 3, 2019.
Major changes in the language of white supremacists have happened in the last decade that provide a window into how the groups mobilize support, shape political perceptions and advance their cause.
Police work near a damaged Home Depot truck on Nov. 1, 2017, after a motorist drove onto a bike path near the World Trade Center memorial.
AP Photo/Andres Kudacki
Sayfullo Saipov, the suspect in the Manhattan bike path attack, wasn't a devout Muslim. He cursed and came late to prayers. A terrorism expert explains why such a man may want to be a martyr.
Police investigate the scene where a car crashed into a roadblock during a suspected terrorist attack in Edmonton on Sept. 30.
(THE CANADIAN PRESS/Jason Franson)
The recent Edmonton attack raises questions about a new type of terrorism and the different methods required to stop it. Labelling such attacks as the work of a "lone wolf" obscures a larger problem.
What’s in the mind of a solo attacker?
Man with gun image via shutterstock.com
Lone offender – sometimes called "lone wolf" – attacks may become a more prevalent threat. What can we understand about them and the people who carry them out?
New York Mayor Bill de Blasio and Governor Andrew Cuomo at the site of an explosion in Chelsea, New York.
A year of violence continues with bombs in NYC and a stabbing in Minnesota, leaving many asking, why? A psychologist explains what research has revealed about the minds of violent extremists.
Encounters at an open day at a Paris mosque.
How literary analysis led one scholar to develop a theory of how immigrants become connected to their host society -- and therefore unlikely to attack it.
Schematic diagram of an aggregate made up of linked users, with the mathematical equation that describes this online pro-ISIS ecology.
A new mathematical model of ISIS supporters' online behavior provides insights into how cyberactivity relates to real-world attacks.
15-year-old Farhad Khalil Mohammad Jabar killed a NSW police force employee on Friday.
There is still much we do not know about lone-wolf terrorism. But what we do know may provide investigators with a sort of detection system to prevent attacks from taking place.
Man Haron Monis, the hostage-taker in the Sydney siege, in 2009.
The events of the Sydney siege this week evolved amid a torrent of speculation and theorising about the motivations and intent of the hostage-taker Man Haron Monis. Some media reporting during the Sydney…