A Michigan State University professor says he thinks he will be haunted after a gunman came into his classroom and began shooting Monday night.
Assistant Professor Marco Diaz-Muñoz says he was teaching in Berkey Hall when the gunman shot seven of his students.
Diaz-Muñoz says he didn't know what to do but barricaded the door once the shooter left and told his students to break windows and run to escape.
He says several of his students stayed behind with him to administer first aid to those who were injured.
View the full story on WOOD TV