Students outside Columbine High School in Colorado in April 1999 following the mass shooting there. Some speculated that the shooters sought revenge for having been bullied.
Youth who are bullied may be at even higher risk than other youth for gun violence. These bullied youngsters were three times more likely to have access to a loaded gun, a recent study states.
A rally outside of City Hall in San Francisco in January.
AP Photo/Jeff Chiu
Twenty years ago, a sheriff won a lawsuit against a federal gun control law. Today, San Francisco is betting the same argument for state's rights will stop Trump from defunding sanctuary cities.
Would Americans prefer smart guns to traditional guns?
American attitudes toward smart guns are complex and do not necessarily follow the patterns we might expect.
Department of Elections workers sort through mailed in ballots at City Hall in San Francisco, on Nov. 8, 2016.
AP Photo/Jeff Chiu
Voters in three states approved ballot measures on firearms. So what will these new laws do?
Donald Trump addresses members of the National Rifle Association.
REUTERS/John Sommers II
The candidate endorsed by the NRA this year wasn't always so pro-gun. A sociologist and physician explains how Trump's position on guns could play out if he were to win in November.
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?
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.
Whenever firearm control is raised, the gun lobby turns to the US Constitution.
Gun control activists rally in front of the White House in Washington DC, earlier this year.
All sides in the debate on gun control in the United States are quick to point to numbers they say back their arguments. But are they playing fair with those figures?
Are lax guns laws changing how people interact in the Show-Me State?
RebelAt of English Wikipedia via Wikimedia Commons
Do guns change the ways that people engage with each other? A gun violence researcher went to Missouri to find out.
Hold it right there.
President Obama's call for better electronic gun-safety systems put a spotlight on the technologies currently in the R&D pipeline that aim to make sure only authorized users can fire a gun.
Shutting it down.
After years struggling to get gun control measures passed, President Obama is taking dramatic new steps. And the American people seem to be on board.
Barack Obama delivers a statement on steps the administration is taking to reduce gun violence.
Changes proposed by the president's executive order are limited. Even Barack Obama admits they wouldn't have stopped recent mass shootings.
Legal or illegal, the US is awash in guns.
Though the perpetrators of the mass shooting in California appear to have acquired their guns legally, the vast majority used in violent crimes are obtained illegally.
A protest outside the National Shooting Sports Foundation in Newtown, Connecticut, March 28 2013.
Thanks to a funding ban passed two years ago, the CDC and other federal groups that study health have been avoiding gun violence research.
A memorial for 20-year-old UCSB student Christopher Michael-Martinez one of nine crime scenes in the Isla Vista neighborhood of Santa Barbara, California in 2014.
America’s gun violence problem actually is producing policy reform. It's just that most of this activity is happening on the state level and has received little attention in the national media.
A killer’s use of TEC-9 assault pistols convinced Californians to repeal immunity for gunmakers. Then Congress overruled them.
Finding solutions for what happened in San Bernardino is a challenge, but ensuring gunmakers behave responsibly should be one piece of the puzzle.
Speaking to the nation December 6.
Winston Churchill famously suggested that: You can always count on Americans to do the right thing – after they’ve tried everything else. Speaking with his characteristic mix of the compassionate and cerebral…
Metro Shooting Supplies employee Chris Cox speaks to a customer about the purchase of a 9mm handgun in Bridgeton, Missouri, November 13 2014.
Research on background checks for gun purchases suggests there is an increase in gun acquisition a few months after a mass shooting happens.
Surveillance video of the straw purchase going down.
A US$5.7 million payout by a rogue gun shop in Wisconsin could force other gun sellers to get more serious about following the law.