A 15-year-old Benson Polytechnic High School student is facing 19 charges, including 12 counts of attempted murder and domestic terrorism, following a Sept. 8 incident where he allegedly released a toxic chemical mixture inside the school cafeteria and critically injured himself. According to investigators cited by KATU, the teenager inhaled off-gassing from the chemicals he brought from home and mixed on campus, triggering a major evacuation and a multi-agency emergency response.
Charges and Legal Proceedings at Multnomah County Juvenile Justice Center
Rachel McCarthy, a spokesperson for the Multnomah County Circuit Court, told OPB that the teenager faces 19 total charges. Court records and statements from the Oregon Judicial Department detail the extensive indictment: one count of domestic terrorism in the first degree, one count of domestic terrorism in the second degree, 12 counts of attempt to commit any degree of murder or aggravated assault, two counts of unlawful possession of a destructive device, one count of possession of a weapon in a public building, one count of unlawful use of a weapon, and one count of reckless endangering of another person. KPTV reported that the student, born Dec. 7, 2010, is scheduled for a court appearance at the Multnomah County Juvenile Justice Center.
Attorneys representing the student’s family released a statement on Friday addressing the legal process and the teenager’s condition. “The fifteen-year-old boy charged in this case is receiving appropriate and necessary mental health treatment,” his attorneys wrote, as reported by OPB and KPTV. “Unlike the adult criminal system, juvenile court is structured to prioritize the individual needs of young people and to promote rehabilitation and healing. The family is grateful that no one else was injured and for the swift intervention of school staff and first responders. They ask for privacy at this time so they may focus on their child’s recovery.”
Did You Know? According to KPTV, emergency personnel and school staff at Benson Polytechnic High School performed CPR and used a defibrillator on the 15-year-old student after he suffered a severe medical emergency from inhaling toxic gases in the cafeteria.
Evacuating School After Hazardous Materials Crews Neutralize Spill
The incident began around 8:30 a.m. on Sept. 8 when students reported smelling a strong odor near the school commons and cafeteria, as detailed by KPTV. First responders arriving at the scene described a green chemical spill and a grayish vapor cloud that smelled of rotten eggs. Firefighters and hazardous materials crews neutralized the spill and cleared the air while the school was evacuated and students gathered at nearby athletic fields.
Emergency medical staff evaluated more than 100 students and staff at the scene for chemical exposure before they left the school, according to KPTV. Portland Fire and Rescue stated that people could be in the environment for up to 8 hours without experiencing adverse health effects from exposure to those specific chemicals. While the student who mixed the chemicals suffered critical injuries and was hospitalized, no other hospitalizations were reported.
Comparative Context on Portland Domestic Terrorism Cases
The domestic terrorism charges filed against the Benson High School student follow another recent case in the region. According to KATU, a teenager from St. Helens was indicted earlier this year on domestic terrorism charges after being accused of plotting to target and kill Immigration and Customs Enforcement agents in Portland. Those charges were later dismissed, and that defendant pleaded guilty last month to unlawfully making a destructive device.
Following the Benson High School evacuation, the Portland Police Bureau, the FBI, the ATF, and a bomb squad launched a joint investigation. Investigators seized electronic devices and chemical samples from the student’s home. Officials previously stated that the student acted alone and posed no ongoing danger to the community.
Facing Nineteen Charges for Chemical Exposure Incident
What specific charges does the 15-year-old student face?
The student faces 19 total charges, which include 12 counts of attempting to commit murder or aggravated murder, first-degree and second-degree domestic terrorism, unlawful manufacturing and possession of a destructive device, possession of a weapon in a public building, unlawful use of a weapon, and reckless endangering of another person.
Where and when did the chemical exposure incident take place?

The incident occurred on Sept. 8 at Benson Polytechnic High School in Portland, where the student mixed household chemicals inside the school cafeteria around 8:30 a.m.
How did emergency responders handle the hazardous material at the school?
First responders described a green chemical spill and a grayish vapor cloud with a rotten egg odor. Firefighters and hazardous materials crews neutralized the spill and cleared the air, while medical personnel evaluated over 100 students and staff at the scene.
How are authorities handling the investigation moving forward?
The Portland Police Bureau, the FBI, the ATF, and a bomb squad conducted a joint investigation, seizing electronic devices and chemical samples from the student’s home while determining that the teen acted alone.

What are the family and legal representatives doing regarding the student’s care?
Attorneys for the family stated that the 15-year-old is receiving appropriate and necessary mental health treatment while moving through the juvenile court system, which prioritizes rehabilitation and individual needs.
How are community members and school officials monitoring the aftermath of the evacuation?
What factors should local authorities prioritize when evaluating security and chemical safety protocols in high school facilities?
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