Mass Shootings in America

"...The horrific mass murder at a movie theater in Colorado on July 20 and another at a Sikh temple in Wisconsin on August 5 are the latest in an epidemic of such gun violence over the last three decades. Since 1982, there have been at least 58 mass murders* carried out with firearms across the country, with the killings unfolding in 30 states from Massachusetts to Hawaii. We've mapped them bel ...