“There is not an epidemic of school shootings,” he said, adding that more kids are killed each year from pool drownings or bicycle accidents. There are around 55 million school children in the United States, and on average over the past 25 years, about 10 students per year were killed by gunfire at school, according to Fox and Fridel’s research.

Fox said, however, some policy changes aimed at decreasing school shootings and gun violence in general certainly have merit. Banning bump stocks and raising the age of purchase for assault rifles from 18 to 21 are good ideas, and may lead to a decrease in overall gun violence, he said. But he doesn’t believe these measures will prevent school shootings. “The thing to remember is that these are extremely rare events, and no matter what you can come up with to prevent it, the shooter will have a workaround,” Fox said, adding that over the past 35 years, there have been only five cases in which someone ages 18 to 20 used an assault rifle in a mass shooting.