School shootings

He faces four counts of first-degree murder, seven counts of attempted murder and unauthorized possession of a firearm.

Police said a suspect was arrested after the shooting in La Loche, Saskatchewan.

Colin Brough died; Nicholas Prato, Kyle Zientek and Nicholas Piring were wounded.

The Oregon community college shooting is the 45th school shooting in 2015.

"Even people that believe in the right to bear arms, what right do you have to take someone's life?"

A Seattle court found him guilty of illegally owning guns, one of which his son used to kill four friends and himself.

Ray Fryberg was once a respected member of the Tulalip Tribes of Washington. Then his son, Jaylen, perpetrated the deadliest high school shooting in a decade.

She is one of the best in the field. She was also one of the first female profilers in the FBI.

U.S. has less than five percent of world's population, but had 31 percent of mass shootings in 1966-2012.

The morning shooting prompted a lockdown and evacuation of the Wayne Community College in Goldsboro, North Carolina, about 50 miles southeast of Raleigh.

Newtown officials say they have razed the home where Lanza lived before his rampage at Sandy Hook Elementary.

Police officers said the shooting was a murder-suicide and a "very isolated situation."

Two years after the massacre, town officials voted to tear down Adam Lanza's house while a new school is in the works.

Dr. Peter Langman's new book, released Friday, focuses on understanding for the sake of prevention.

Two years after the devastating shootings in Newtown, some victims' parents are pushing to protect kids from gun violence.

Parents of 11 victims file papers to create estates for their children, a necessary step before filing a wrongful-death suit.

A report released Friday presented a profile of the gunman and revealed the missed opportunities before Lanza embarked on his shooting spree.

One package sent by the gunman has reportedly arrived in Texas.

Gunfire broke out at the Strozier Library overnight, the gunman's motive is still unknown

A new play draws from the shooters' journals, letters and home videos to try to spur discussion about school violence. Some Columbine families are furious.

Friends and family lined the road to support 14-year-old survivor as he returned home.

Susan Klebold to write about her son's actions and her involvement in suicide prevention

Phil Chalmers says he's America's leading juvenile homicide expert, and that his work has helped avert numerous school shootings

"A gunman entered the high school this morning, shot one student," the Troutdale police chief said.

Columbine was not the first school shooting, nor was it the last, but it was nonetheless an event of extreme national trauma.