Mesa Student Arrested for Alleged Terroristic Threats

Authorities say the 15-year-old made online threats targeting a mosque and his high school.

Published on Feb. 28, 2026

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A 15-year-old student at Dobson High School in Mesa, Arizona was arrested last week after allegedly making terroristic threats online. The student is accused of posting racially motivated threats about carrying out a mass shooting at a mosque and his school, specifically targeting Hispanic students. The FBI's Domestic Terrorism Unit had been investigating the teen since late January after he allegedly made multiple online statements indicating he was in the Phoenix area.

Why it matters

This incident highlights the growing concern over domestic terrorism and the need for vigilance in monitoring online activity, especially among young people, to prevent potential acts of violence. The case also raises questions about mental health support and intervention for students who may be exhibiting concerning behavior.

The details

According to the Mesa Police Department, the student allegedly posted photographs of tactical gear and firearms online in addition to the threats. Police executed search warrants at two residences associated with the suspect and found items consistent with the online posts, including tactical gear, a tomahawk, and extremist-related materials. Detectives also seized electronic devices, airsoft-style rifles, and a realistic handgun replica.

  • The FBI's Domestic Terrorism Unit had been investigating the teen since late January.
  • The FBI notified Mesa police on the evening of Feb. 18 after identifying the suspect as a Dobson High School student.
  • The student was taken into custody without incident on Feb. 19 at Dobson High School.

The players

Dobson High School

A high school located in Mesa, Arizona where the 15-year-old suspect attended.

FBI's Domestic Terrorism Unit

The federal law enforcement agency that had been investigating the teen since late January.

Mesa Police Department

The local law enforcement agency that arrested the 15-year-old student and is continuing to investigate the case.

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What’s next

The case remains under investigation by the Mesa Police Department.

The takeaway

This incident underscores the importance of monitoring online activity and taking threats seriously to prevent potential acts of violence. It also highlights the need for greater mental health support and intervention for students who may be exhibiting concerning behavior.