A North Dakota school superintendent who carried a gun to a high school says he was concerned about a confrontation with a student who was expelled.
Now the incident is raising concerns about student safety in an area where the population has exploded in recent years amid an oil boom.
It's also prompted D'Wayne Johnston to resign from his job as superintendent of Tioga's public schools, though he says he plans to stay in education.
Johnston told The Associated Press in a telephone interview Wednesday that despite his worries, he should have turned to police instead of carrying a gun to the high school a day after the confrontation with a student.
Johnston wouldn't describe the boy's threat in detail, but he said it kept him up that night.