Sandy Hook

Nearly one-fifth of all people living in the United States who died at the hands of a firearm since 1999 were killed over a three-year period.

87 percent of school shooters give warning signs and threats, in one way or another.

"Survive the school year with these must-have #BackToSchool essentials," the group Sandy Hook Promise tweeted. "This PSA contains graphic content."

The Sandy Hook Promise initiative will teach kids how to recognize social isolation among their peers and develop tools to overcome interpersonal barriers.

"Even marginal increases in handgun prevalence may be impactful," researchers said.

After 20 children were killed, Wayne LaPierre was criticized by many for his proposal to arm security guards to protect schools.

Speaking on his InfoWars show "War Room," Shroyer called for the lynching of "treasonous" former President Barack Obama.

Researchers found that around 20 percent of mass shooting events are followed by significant increases in gun purchases.

Senator Chris Murphy of Connecticut condemned Alex Jones and Silicon Valley companies for promulgating false conspiracy theories related to school shootings, after one victim's father and two survivors died in apparent suicides.

"This is a heartbreaking event for the Richman family and the Newtown Community as a whole, the police department's prayers are with the Richman family right now, and we ask that the family be given privacy in this most difficult time."

"The regulation of advertising that threatens the public's health, safety, and morals has long been considered a core exercise of the states' police powers."

The presidential hopeful expressed her frustration at Congress's failure to tighten gun control in the wake of the Sandy Hook massacre.

"On this day, the six-year mark of the Sandy Hook shooting, do something kind, generous and unplanned."

A mother whose daughter died in the attack finds solace in her decision to join forces with tech company Bark, whose real-time monitoring app, she believes, could prevent the next shooting.

The radio host is being sued for defamation by several parents who lost their children in the 2012 massacre.

Tech giant latest company to take actions against right-wing conspiracy theorist.

Dozens of the conspiracy theorists podcast episode are still available to stream on the platform.

Streaming service Spotify faced criticism from users and politically-minded podcast hosts for hosting hundreds of "The Alex Jones Show" broadcasts from the Infowars conspiracy theorist.

"The more unpopular the speaker, I think the more likely it is that they say 'get [Marc] Randazza.'"

Let's stop pretending that we can enact gun control without impacting responsible gun owners.

The InfoWars conspiracy theorist confronted Sanders Monday at the California airport.

InfoWars host claims he never said the 2012 Newtown massacre was faked.

Jones claimed interviews with grieving parents were filmed on blue-screen.

Nobody knows how many dues-paying members the NRA really has, because it won't release regular or verified membership rolls. A Newsweek analysis found it could be significantly fewer than what the gun group claims.

Since the Parkland, Florida, shooting, we've seen a surge of support for prevention of gun violence.

My six-year-old brother, Noah, was murdered in his classroom. His twin sister, Arielle, and older sister, Sophia, survived. That day is burned into my memory forever.

The number of children killed by gunfire in the United States since the 2012 mass shooting at Sandy Hook Elementary School is greater than the total of U.S. soldiers killed in overseas combat since 9/11, according to a Department of Defense report.

"Obviously, this is why we have unintentional shootings involving children."

I, too, thought gun violence would never enter my life. Until Sandy Hook.

"While they ignorantly partied and remained uninformed on an issue that kills thousands of Americans every year, I was crying myself to sleep," the grieving mother wrote.