(Reuters) - A man residing in Dublin, Ireland, was indicted on Wednesday for sending more than 40 emailed bomb threats to the University of Pittsburgh, which prompted the school to evacuate parts of its campus more than 100 times, federal prosecutors said.
Adam Stuart Busby, 64, was charged with 17 counts of wire fraud, 16 counts of maliciously conveying false information and two counts of international extortion.
Busby is being held in jail in Ireland.
In a related indictment, two Ohio men were charged with making additional threats against the university.
The university has received 143 threats this year. The first was made on February 13 against the University of Pittsburgh's Chevron Science Center, where the chemistry department is located.
In April, after receiving 10 bomb threats in three weeks, the school offered a $50,000 reward for information leading to the capture of whoever was responsible.