The culprit behind a bomb hoax at Harvard University on Monday was a Korean-American student who wanted to avoid taking his exams, U.S. federal prosecutors said Tuesday.
Eldo Kim (20) was arrested on charges of masterminding the bomb hoax.
Kim e-mailed a bomb threat to campus police, school officials and the student newspaper saying explosives had been put in four buildings. The message added "be quick for they will go off soon."
The FBI and police sealed the entrances to the university and conducted a seven-hour search but found no explosives.
Police traced the e-mail through the school's intranet and arrested Kim the next day. Kim confessed and said he simply wished to avoid taking the exams, according to the FBI.
He added that he thought he had succeeded when he heard the alarm.
The campus newspaper Harvard Crimson reported that Kim likes swimming, tennis and other sports as well as debating. He excelled in high school in Washington State, where he grew up, and was active in volunteer work as well.
If found guilty, Kim faces up to five years in jail or a US$250,000 fine. Harvard University will pursue its own disciplinary measures.