Most school shootings from 1990 to 2016 involved lower- to moderate-powered firearms, and 98 percent resulted in 1 or 2 deaths. Most guns were stolen from relatives.
Many Americans think of school shootings as mass casualty events involving an adolescent with an assault-style weapon. But a new study says that most recent school shootings orchestrated by teenagers do not fit that image and they are often related to community violence.
More than half of the shooters got the firearm they used from a family member or a relative. About 30% got a weapon from the illegal market, while 22% obtained weapons from friends or acquaintances.