SAN FRANCISCO (CBS SF) – A suspect who threatened to “blow up or shoot up” a campus library at San Francisco State University was arrested Monday afternoon, according to university police.

At approximately 3:12 p.m. Monday, a witness reported to a uniformed Community Service Specialist that he had seen an unknown male walk in through the Holloway Avenue entrance of the Library carrying multiple bags and yelling that he was going “to shoot up and blow up” the J. Paul Leonard Library.

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The first responding SF State Police officers arrived at approximately 3:18 p.m. and found the subject and his bags on the first floor. The subject was detained and the area was cordoned off and secured.

An alert was sent out to students at 3:25 p.m. and said people should avoid the area and shelter in place. The campus is located at 1600 Holloway Avenue.

Just two minutes later, the campus Twitter account posted that a subject had been detained in the incident.

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Once the suspect was removed from the scene, the library was evacuated. The Explosive Ordinance Disposal Unit of the San Francisco Police Department was contacted for assistance in determining if the threat was valid. At approximately 4:35 p.m., the packages were deemed non-explosive and safe.

The subject was identified as a 55-year-old male with no affiliation to SFSU. He was booked on two felony counts of criminal threats at the San Francisco County Main Jail.

Members of the SF State community are encouraged to remain alert and vigilant and report any suspicious or concerning activity to the SF State Police Department immediately.

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Anyone on campus who feels unsafe should contact the SF State Police Department at (415) 338-7200 or visit our website at for additional information.