Mass shootings in Pennsylvania

On July 13, 2024, Donald Trump, then a former president of the United States and the presumptive nominee of the Republican Party in the 2024 presidential election, survived an assassination attempt while speaking at an open-air campaign rally near Butler, Pennsylvania. Trump was shot and wounded in his upper right ear by 20-year-old Thomas Crooks, who fired eight rounds from an AR-15–style rifle from a nearby building's roof. Crooks also killed an audience member, Corey Comperatore, and critically injured two others. Four seconds after he began firing, a member of the Butler County Emergency Service Unit shot at him and hit Crooks's rifle, preventing him from firing more shots. Twelve seconds later, Crooks was shot and killed by the Counter Sniper Team of the United States Secret Service.

antisemitic mass shooting in Pittsburgh, Pennsylvania on October 27, 2018

2006 school shooting in Lancaster County, Pennsylvania

L.A. Fitness mass murder