Four on-campus buildings received bomb threats Wednesday, leaving hundreds of students waiting behind yellow police tape on a day already tense from the anniversary of the Sept. 11, 2001, attacks.
At approximately 10:30 a.m., the Law Library received the threat.
Staff members at the Goldwater Building, the ASU Bookstore and the Memorial Union received calls at noon.
A male called the front desk of each of the four sites and told ASU staff that a bomb would go off within a half an hour, according to Lt. John Sutton.
ASU police and campus workers assisted in evacuating students from the buildings.
The buildings were vacated and searched for about an hour, though nothing was found, but students and faculty were kept outside as a precaution.
Sutton was at the MU and helped to keep students from the perimeter of the area.
"There are too many coincidences involved to make this not a coincidence," he said, in reference to Sept. 11 being the day chosen to make the threats.
"Someone definitely had this planned out."
Sutton also said threats were called into the same four locations numerous times two years ago. Even with intervention of the FBI, ASU police were unable to track the calls or find a suspect.
Reach the reporter at christina.viloria@asu.edu.