Four students injured in Dallas High School shooting, suspect in custody

Nashville school shooting leaves two dead, including shooter

At least four dead in Georgia high school shooting

Columbine school shooting remembered 25 years on

Two dead at Virginia high school graduation shooting

Jury recommends life in prison for Parkland school shooter

Former officer charged for not responding to Florida school shooting

Texas teachers take up arms training

Oprah praises Florida high school survivors

Trump vows action on gun background checks

US gun owners take to social media to destroy their guns

Protests against gun violence in US schools

Outrage, tears at vigil for Florida shooting victims

At least 17 dead in Florida high school shooting