A 19-year-old Kent State student was busted by police at his parents' home yesterday after university officials say he tweeted that he was going to "shoot up" the campus. Sophomore William Koberna was charged with inducing panic, a felony, and aggravated menacing, reports WEWS-TV. He's scheduled to be arraigned today. He'll also face a school disciplinary hearing that could result in his expulsion. "Our students, employees, and all those who come to campus should know that their safety is our top priority. Any threat to our campus community is taken seriously and immediately investigated," said Lester Lefton, president of the Ohio university.