Mourners embrace at a vigil for Richard Collins III, who was stabbed to death in College Park, Maryland.
AP Photo/Brian Witte
Like the death of Heather Heyer in Charlottesville, the murder of Richard Collins III was a symptom of violent extremism that should be treated accordingly.
After two terror attacks the prior week, police patrolled the Westminster Bridge on election day 2017 in London.
AP Photo/Markus Schreiber
Given the persistent risk of terrorist attacks and large-scale accidents, it's more critical than ever for EMTs, police, firefighters and others to learn from the past.
The attacks in Manchester and London can be categorized as ‘newest’ terrorism, which is more lethal and public than previous forms of terrorism.
The latest wave of terrorism aims to kill as many people as possible, as horrifically as possible, with new tools and methods. That makes fighting back more difficult.
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?
Anxiety can turn debilitating.
With shootings and explosions and a coup in recent weeks, it's only natural that anxiety would besiege us. There are research-tested ways, however, that can help us deal with it.
Guns have another kind of price tag.
The current debate over the right to bear arms versus regulation is at a stalemate, but a new dialogue that focuses on the social burden of firearms might provide a new way forward.
A plane flies over a vigil for the Pulse night club victims.
What does it mean to view firearm violence as a public health problem?
James Holmes was a psychiatric patient at the time he shot 24 people dead in the Aurora Picture House shooting in 2012.
EPA/Arapahoe County Sherriff's Office
Telltale signs can identify people at risk of committing extreme violence.
Interviews reveal the thoughts and feelings of UK Muslims on homosexuality.
A target shooting instructor and student.
As automobile technology advanced, so did our safety measures. UC Denver and MIT sociologists explain how to do the same with guns.
Imam Syed Shafeeq Rahman of the Islamic Center of Fort Pierce speaks with the media following a prayer for victims of the Orlando shooting.
Because Muslim Americans are an extreme 'outgroup,' they're all the more vulnerable to discrimination, especially in the wake of negative media coverage.
A woman writes on a cross placed in honor of the victims of the shooting at the Pulse nightclub.
It is now recognized within public health that discrimination causes significant health problems for the LGBTQ community.
Twenty years ago, Australian federal, state and territory governments united to reform our firearm laws which had allowed easy access in some states to the military-style weapons of the sort used by the gunman in Orlando, Florida.
Seddique Mateen, the father of Omar Mateen, grabs a photographer’s lens at his home.
Orlando shooter Omar Mateen's father has denounced homosexuality, while many say Mateen secretly grappled with his own sexuality. Here's what the research says on the relationship between parents' attitudes, being closeted and being homophobic.
Should this gun be in the hands of a civilian?
Connecticut State Police via Reuters
Gun makers are trying to dismiss the potentially precedent-setting suit, claiming a federal law gives them immunity.
Peter Paul Rubens, Lot and his family escaping from the doomed city guided by an angel, circa 1615.
For Muslims generally, as for conservative Christians, homosexual acts are sinful. Christian gays and lesbians have had to work hard for a measure of recognition among fellow-believers; their Muslim counterparts are just beginning that struggle.
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.
Officers attend the scene in Orlando.
Times are changing ... but far too slowly.
Orlando in mourning.
A journalist turned professor explores the identity of the city he has reported on for 41 years.
The Orlando massacre is an extreme example of the public health crisis of anti-LGBT violence in America.
Aggression against sexual minorities is rooted in society-level stigmas that devalue LGBT individuals.