CHARLOTTE — Authorities have arrested a North Carolina college student who they say wrote about committing a school shooting and told a doctor he couldn't wait to buy a gun to do it.

The Charlotte Observer reports a search warrant from UNC Charlotte police said 20-year-old student Matthew Saavedra told a doctor in King, northwest of Winston-Salem, that "he could not wait to buy a gun and shoot the university (UNCC) up." The doctor, who also said Saavedra discussed an "explicit detailed plan . . . about killing and harming our students and staff," called police.

Saavedra, who was voluntarily committed to a Winston-Salem hospital, is charged with making a false report concerning mass violence on educational property. He's out on bond and it's not known if he has an attorney.