RALEIGH, N.C. (AP) — A North Carolina university student arrested with guns and ammunition in his dorm room had studied mass shootings and was making plans to kill his roommate and himself if he didn't get into a fraternity, a prosecutor said Wednesday.

Paul A. Steber, a 19-year-old freshman from Boston attending High Point University, was arrested Tuesday and charged with two felony counts of having a gun on campus and a charge of making threats of mass violence, the High Point Police Department said in a statement.

No one was hurt and there was no immediate threat to others on campus, the un...