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Assault

Teenager tried as adult on multiple charges after stabbing fellow student at Northwestern Senior High School

A 15-year-old student in Miami was charged as an adult after stabbing a fellow student at Northwestern Senior High School.

By URC · NEWS NewsroomMiami, FLNovember 1, 2026 at 9:51 PM UTCUpdated November 2, 2026 at 12:23 AM UTC
Teenager tried as adult on multiple charges after stabbing fellow student at Northwestern Senior High School
Photo: WSVN Miami

Full report

Case Summary

Case Type
Assault
Incident Date
Aug. 31
Location
Northwestern Senior High School, Miami, FL
Investigating Agency
WSVN Miami
Suspect
Carlos Martinez
Suspect Age
15
Victim Count
1
Charges
aggravated battery with a deadly weapon, possession of a weapon on school property, educational instruction interference
Arrest Status
Charged as an adult
Case Status
Active

A 15-year-old student, identified as Carlos Martinez, faces multiple criminal charges as an adult following a stabbing incident that injured an 18-year-old fellow student at Northwestern Senior High School in Miami, Florida, according to local reports.

The violent encounter unfolded on school grounds on Aug. 31, drawing swift attention from law enforcement and school officials as investigators pieced together the sequence of events that led to the hospitalization and subsequent recovery of the victim.

Incident Overview

According to authorities, the altercation began when Carlos Martinez was caught on camera fighting two other students at Northwestern Senior High School. During the physical confrontation, police say Martinez produced a bladed instrument and stabbed the 18-year-old victim in the back as the victim attempted to flee the area.

School safety protocols and emergency responders were quickly activated to address the immediate medical needs of the injured student. The victim sustained serious injuries during the attack but has since recovered from the wounds inflicted during the incident.

Suspect Information

The suspect in this case is 15-year-old Carlos Martinez. Despite being a juvenile by age, prosecutors and legal authorities made the determination to try Martinez as an adult due to the severity of the offenses and the use of a deadly weapon on educational property.

Martinez now faces the full weight of the adult criminal justice system, which carries significantly different legal implications, potential sentencing guidelines, and penal consequences compared to the juvenile adjudication process.

Victim Information

The victim involved in the altercation is an 18-year-old student attending Northwestern Senior High School. Officials have not released the name of the victim to protect student privacy and ensure safety following the violent encounter.

According to updates from reporting agencies, the victim has successfully recovered from the stab wounds sustained in the back during the school grounds attack.

Police Response

Local law enforcement agencies responded to Northwestern Senior High School following emergency calls regarding a fight and a stabbing in progress. Responding units secured the perimeter, rendered aid to the injured victim, and initiated immediate investigative protocols to identify and detain the parties involved.

Investigation

The investigation into the stabbing at Northwestern Senior High School was conducted by local law enforcement officers in coordination with school administration officials. Investigators reviewed surveillance footage capturing the altercation and gathered statements from witnesses to establish the chronology of the fight and the subsequent use of a weapon.

Evidence Collected

Physical and digital evidence gathered by law enforcement officials during the course of the investigation includes surveillance video footage capturing the physical fight between the suspect and other students, as well as the weapon used during the commission of the alleged offense on school property.

Arrest Details

Following the stabbing incident at Northwestern Senior High School on Aug. 31, Carlos Martinez was taken into custody by law enforcement authorities. The suspect was subsequently processed and charged as an adult in connection with the attack.

Charges Filed

Carlos Martinez faces a formal list of criminal charges filed by prosecutors in the state of Florida. The charges reflect the severity of utilizing a deadly weapon within a protected educational environment:

  • Aggravated battery with a deadly weapon: A serious felony charge involving the intentional touching or striking of another person against their will using an instrument capable of causing death or great bodily harm.
  • Possession of a weapon on school property: A specific offense prohibiting individuals from carrying, displaying, or concealing weapons on the grounds or facilities of any educational institution.
  • Educational instruction interference: A charge relating to actions that disrupt, impede, or interfere with the orderly operation of a school and its educational activities.

Court Information

Specific court case numbers, docket designations, and scheduled dates for upcoming hearings have not been formally released to the public by judicial authorities at this stage of the proceedings.

Statements from Authorities

According to reports from WSVN Miami detailing the official law enforcement findings, police stated that the suspect was caught on camera fighting two other kids at Northwestern Senior High School and that Martinez stabbed an 18-year-old in the back as they tried to run away.

Public Safety Information

Violence on school grounds poses severe risks to students, staff, and the broader community. Educational facilities maintain strict zero-tolerance policies regarding weapons and physical altercations. Anyone with information regarding threats, weapons, or violence on school campuses is encouraged to contact local law enforcement immediately or dial 911 in case of an emergency.

What Happens Next

With Carlos Martinez charged as an adult, the case will proceed through the formal criminal court system. The next procedural steps typically involve a formal arraignment where the defendant enters a plea, followed by pretrial discovery, motion hearings, and potentially a trial unless a plea agreement is reached between the defense and prosecutors.