Overview

• Kathleen M. Tierney, 56, faces a felony count of computer tampering and two misdemeanors tied to the Aug. 28 social media post.
• Tempe officers took Tierney into custody in Tucson with assistance from the U.S. Marshals Service.
• The post prompted evacuation of about 75 people and led to the first safety-related cancellation of a Tempe council meeting.
• Police have not released a motive or the content of the post, saying the investigation remains active.
• Officials also reported a separate Sept. 16 bomb-claim incident at police headquarters with no confirmed link to the council threat.