mass shootings

The Card Killer case is a Spanish serial murder case from 2003, in which ex-soldier Alfredo Galán Sotillo shot nine people in and around Madrid, leaving playing cards at crime scenes as his signature.

Raising a School Shooter is a 2021 Danish documentary on Filmstriben covering the Columbine, 2001 Santee, and 1988 Virginia Beach school shootings through the eyes of the perpetrators' parents.

The Pulse nightclub shooting was a mass shooting and terrorist attack at an LGBTQ nightclub in Orlando, Florida, on June 12, 2016, in which gunman Omar Mateen killed 49 people.

The D.C. Sniper Attacks were a serial shooting spree in October 2002 that killed 10 people across the Washington D.C. area, committed by John Allen Muhammad and 17-year-old Lee Boyd Malvo.

The Thurston High School shooting is a 1998 US mass shooting in Springfield, Oregon, in which 15-year-old Kip Kinkel killed his parents and then two classmates and wounded about two dozen students.

On 20 December 2024, a 50-year-old man from Saudi Arabia drove a car into the crowd at the Christmas market in Magdeburg, Germany. The attack killed 6 people and injured around 300 others. The suspect was arrested at the scene and had been working as a psychiatrist in Germany.

On October 9, 2019, Stephan Balliet, a 27-year-old German right-wing extremist, attacked a synagogue and kebab restaurant in Halle an der Saale with the aim of killing as many people as possible. The attack was stopped by police, but resulted in two deaths and several wounded.

On February 19, 2020, Tobias R. carried out a racist terror attack in Hanau, near Frankfurt, Germany, killing nine people across two locations. All victims had migrant backgrounds. The perpetrator took his own life shortly after fleeing the scene.

Laura Connelly left a bar in Paisley near Glasgow after an evening with old school friends, but never made it home. Attacked and killed within sight of her doorstep, her case became the focus of a gripping podcast investigation into how a killer struck so close to safety.

Rex Heuermann, en 59-årig arkitekt fra Massapequa Park, blev i juli 2023 anholdt og sigtet for mordene på mindst fire kvinder fundet ved Gilgo Beach på Long Island – en sag der havde været uopklaret i over et årti.

ABC Audio and 20/20 have partnered to launch 'The Hand in the Window,' a six-part podcast series exploring the 2016 capture of serial killer Shawn Grate in rural Ashland, Ohio. Hosted by veteran journalist John Quiñones, the limited series premiered November 4, 2025, and traces how a desperate 911 call led investigators to uncover multiple homicides across the state.

This curated selection by the truecrime.news editorial team brings together ten of history's most notorious mass murder cases — events that shocked entire nations, redefined law enforcement, and left permanent marks on the cultural memory of crime.

Lonnie David Franklin Jr., a garbage collector known as the Grim Sleeper, murdered at least 10 young Black women across South Los Angeles between 1985 and 2007. His arrest in 2010 came after a familial DNA match finally connected him to crimes that had haunted the community for more than two decades.