That worry is leading to feelings of anxiety for students across the country, impacting them in the classroom and at home.
At a time when most teens are planning for the summer, many are planning for a way out, should something happen.
According to the Pew Research Center 57 percent of the nearly 1,000 teens surveyed said they were worried.
A quarter of that group said they were very worried.
The survey was conducted after 17 people were killed at a Parkland, Florida high school, but before last week's shooting in Santa Fe, Texas that left 10 people dead.
The anxiety can distract students from their work and impact their relationships with their peers.
Doctors say parents should check in with their children regularly and empower them to face the anxiety.
