. . . in a study by
Mass school shootings are incredibly rare events. In research publishing later this year, Fox and doctoral student Emma Fridel found that on average, mass murders occur between 20 and 30 times per year, and about one of those incidents on average takes place at a school. . . . .
Their research also finds that shooting incidents involving students have been declining since the 1990s. . . . .
Read more about this at: News @ Northeastern