Teen arrested after school shooting threat
Police in Washington said they seized 23 guns from the home of a 13-year-old who appeared to be fixated on school shooters. CBS News reporter Andres Gutierrez has more.
Columbine High School
School lockdown drills have become common — experts say they could be better
Before the Columbine High School shooting, schools prepared for fires and natural disasters. After the 1999 massacre, states enacted lockdown and active shooter drills.
The legacy of Columbine victim Daniel Mauser
Saturday marks 25 years since the massacre at Columbine High School in Littleton, Colorado, in which two gunmen killed 12 students and a teacher. One of those victims was 15-year-old Daniel Mauser. His father spoke to Karen Morfitt about the far-reaching legacy his son left behind.
Columbine school shooting victims remembered at 25th anniversary vigil
Twelve students and a teacher were killed during the school shooting the worst the nation had seen at the time.
Columbine survivor 25 years later
The Columbine High School mass shooting in Littleton, Colorado, left behind many survivors and families who are still dealing with the massacre's trauma. Zach Cartaya, a Columbine student and co-founder of The Rebels Project, joins CBS News with more on his mission to help other victims of violence.
Parkland survivor David Hogg on Columbine
Saturday marks 25 years since the mass shooting at Columbine High School. David Hogg, who survived a massacre at his high school in Parkland, Florida, joins CBS News to discuss the ongoing push for change.
Marking 25 years since the Columbine shooting
Saturday marks 25 years since the devastating Columbine High School shooting in Littleton, Colorado. Twelve students and one teacher were killed when a pair of students opened fire during a school day in what became one of the most high-profile mass shootings in American history. Dave Cullen, author of the book "Columbine," joined CBS News to discuss that tragic day.
Christa Pike has pneumonia, unable to move arms after botched execution, lawyers say
Investigation
Congress tried to stop surprise medical bills. It created another problem.
Tropical Storm Isaias forms in Gulf, could reach U.S. as hurricane this weekend
How Israeli and Palestinian kids are coping 3 years after Oct. 7 attacks
Investigation
Weeks before Election Day, the FEC can't enforce the law
Live
Vance appears to soften U.S. demands on Iranian nuclear enrichment
Man eyed Mall of America for attack, pledged allegiance to ISIS, FBI says
Lawyers seek to stop execution today in Texas, citing Christa Pike's failed injection
