Mass shootings have become a tragically recurring event in American life, generating intense public debate and scrutiny of law enforcement response, mental health systems, and policy. CaseSleuth documents these cases with a strict focus on factual accuracy and respect for victims. Each entry includes a detailed chronological timeline of the event and subsequent investigation, profiles of victims and first responders, evidence breakdowns, and comprehensive tracking of the legal proceedings that follow. Our coverage also includes analysis of law enforcement response timelines and any relevant prior warning signs that were identified after the fact. These cases are documented not for sensationalism but to provide a complete, centralized record that supports informed public discourse and honors the memory of those affected.
4 cases found
InfoWars host Alex Jones was found liable for defamation after years of claiming the Sandy Hook shooting was a hoax. Courts awarded nearly $1.5 billion to victims' families in 2022.
On February 14, 2018, 19-year-old Nikolas Cruz opened fire at Marjory Stoneman Douglas High School in Parkland, Florida, killing 17 people and wounding 17 others. It was one of the deadliest school shootings in U.S. history and sparked a nationwide gun control movement.
On October 1, 2017, Stephen Paddock fired from the 32nd floor of Mandalay Bay into a concert crowd, killing 60 and wounding over 400. It remains the deadliest mass shooting in modern U.S. history.
On April 20, 1999, seniors Eric Harris (18) and Dylan Klebold (17) carried out a mass shooting at Columbine High School in Columbine, Colorado, killing 12 students and teacher Dave Sanders and wounding 23 others before dying by suicide. The attack, planned for roughly a year and originally conceived as a bombing, became a watershed moment in American history that transformed school safety protocols, law enforcement response to active shooters, and the national gun control debate.