James and Kimberly Snead Say Nikolas Cruz Had a 'Right to Own' AR-15

The Deadliest School Shootings in Modern American History

Boy, 6, Who Was Shot Twice at School by California Gunman Recovering After Lifesaving Surgery

Lights Dimmed Over Las Vegas Strip After Tearful Vigil Marks One Week Since Massacre

Police Find Chilling Note Left By Las Vegas Gunman Detailing Bullet Trajectories

Vegas Shooter Hid Hotel Arsenal by Hanging 'Do Not Disturb' Sign on Door for 3 Days

Inside Stephen Paddock's 1,700-Square-Foot Mandalay Bay Suite Where He Staged Killing Spree

In Wake of Vegas Shooting, Late Night Comics Let Go of Humor to Push for Gun Control

After Vegas Massacre, How to Increase Your Odds of Survival If a Gunman Opens Fire Into Open Area