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.
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.
The presidential hopeful expressed her frustration at Congress's failure to tighten gun control in the wake of the Sandy Hook massacre.
The radio host is being sued for defamation by several parents who lost their children in the 2012 massacre.
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.'"
InfoWars host claims he never said the 2012 Newtown massacre was faked.
Since the Parkland, Florida, shooting, we've seen a surge of support for prevention of gun violence.
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."