After removing the suspect from the scene, Cambridge police bomb technicians examined his satchel, which had been left in the Science Center. They eventually determined that it was not an explosive and removed it as well.

Outside, while news helicopters hovered overhead, Mitten talked with students.

"I'm just glad everyone's okay. I want to thank you all for acting with cool heads," he said. He added jokingly, "This is an insult to Alexander!"

Around 11:30 a.m., HUPD reopened the building to allow students to get their possessions and leave. Under the watchful eye of half-a-dozen HUPD and Cambridge Police Department officers, students filed into Science Center B and retrieved their coats and bags. HUPD also allowed students, faculty and staff back into the other areas of the building to retrieve belongings.

Exam Havoc

The bomb scare caused chaos in the Registrar's Office, which oversees the scheduling of exams.

Besides "Alexander the Great," the only other class affected was Economics 2010c, "Economic Theory," a graduate-level class that had been taking an exam in the adjacent Science Center C. Students there were evacuated to Holden Chapel to keep warm and await further instructions.

While at the Chapel, most students expressed frustration at the interruption, saying that they just wanted to finish the final.