Father punches teacher nine times at Guará school after being reprimanded for cell phone in the Federal District; daughter holds attacker in chokehold

A 53-year-old mathematics teacher was physically assaulted by a student’s father at Centro Educacional 4 in Guará, Distrito Federal, on the morning of October 20, 2025. The incident occurred after the teacher reprimanded the student for using her cell phone during class, asking her to copy the board’s content. The father, identified as Thiago Lênin Sousa, aged 41, went to the school to confront the teacher and delivered at least nine punches to the victim’s head.

Security camera footage captured the moment the man entered the coordination room, grabbed the teacher by the collar, and struck him repeatedly. Other school staff intervened to restrain the situation, while the aggressor’s daughter attempted to stop him by applying a chokehold. Three additional students witnessed the episode in the room.

The teacher reported that the student initially refused to follow instructions and then contacted her father by phone. He described the confrontation as sudden, with no chance to react beyond shielding himself with his arms. The victim has 25 years of experience in the public school system, with ten years at this specific school.

• The aggressor shouted insults during the attack, constituting defamation.
• The daughter’s intervention lasted seconds and helped subdue the man.
• Staff separated the parties and immediately called the Military Police.

Sequence of the assault captured on video

The internal camera recordings show Thiago Lênin Sousa advancing directly toward the teacher upon entering the coordination room. He delivered rapid successive punches, primarily targeting the head, while the teacher backed away and raised his arms in defense.

Other school staff, alerted by the noise, entered the room and assisted in restraining the aggressor. The daughter, present at the scene, reacted by applying a chokehold to stop her father, allowing the group to temporarily immobilize him.

The scene ends with the man being escorted out of the room while colleagues provided initial aid to the victim, who showed visible signs of injury.

Police and legal measures taken

The Military Police arrived at Centro Educacional 4 minutes after the call and secured the area to preserve the scene. Thiago Lênin Sousa and the teacher were taken to the 1st Police Station in Asa Sul, where the case was formally registered.

The aggressor signed a Detailed Occurrence Report for bodily injury, defamation, and contempt, offenses of lesser severity allowing him to remain free. In his statement, he claimed the daughter reported being insulted by the teacher but denied making prior threats.

The investigation continues to clarify additional details, including witness statements. The police confirmed no weapons were involved in the confrontation.

The Distrito Federal Education Secretariat issued a statement condemning the episode and announced an internal investigation by its Oversight Office.

Physical and emotional consequences for the teacher

The 53-year-old teacher sustained a black eye, bruises on his back, and abrasions on his body after the attack. His glasses were broken during the incident, and he received immediate medical attention at the scene before being taken to the police station.

He chose not to disclose his name publicly and expressed difficulty returning to the school environment in the coming days. With 25 years of teaching experience, he noted this was the first incident of physical violence in his career.

The minor bodily injury does not require extended medical leave, but the psychological impact prompted a request for recovery leave. Colleagues have reported collective support for the victim since the incident.

Secretariat actions for school safety

The Guará Regional Education Coordination has been monitoring the case since the afternoon of October 20 and met with the student’s mother for clarifications. The School Battalion was mobilized for additional patrols during student entry and exit times throughout the week.

The department reinforced access protocols at the institution, limiting unscheduled visits to prevent recurrences. Periodic conflict management training for staff is already part of the annual public school network calendar.

In 2025, Distrito Federal recorded 1,349 criminal incidents in schools by July, averaging seven cases daily, including 190 bodily injuries. The secretariat prioritizes coordination with security forces to reduce these numbers.

• Increased surveillance around the school.
• Assessment of cameras for expanded coverage.
• Dialogues with parents to promote peaceful coexistence.

Regulations on cell phone use in classrooms

Federal legislation bans cell phone use by students during classes in public schools, as per a law enacted in 2024. In Distrito Federal, the rule has been in effect since January 2025, with exceptions for educational activities or emergencies.

The teacher followed the regulation by instructing the student to put away the device and focus on the task. Guará schools implement temporary device confiscation for non-compliance, returning them at the end of the school day.

Ministry of Education data indicate that 43% of theft incidents in school environments involve cell phones. The restriction aims to minimize distractions and security risks.

The student faced no immediate disciplinary sanctions, but the incident is part of an internal report for family guidance.

Recent incidents of violence in educational units

Centro Educacional 4 has a low incidence of serious conflicts in recent years, contrasting with a 24% increase in bodily injuries in DF schools between 2023 and 2024. In 2025, Guará recorded 125 criminal notifications in schools by September.

Similar cases occurred in Ceilândia and Taguatinga, involving disputes between parents and teachers over disciplinary issues. The Civil Police are investigating 391 threats in educational settings during this period.

The public school network employs the Guardian School Program for prevention, including safe space design and preventive doctrines. By the third quarter of 2025, the battalion seized 11 prohibited items in DF schools.

The episode underscores the need for ongoing monitoring, focusing on dialogues between families and educators for peaceful conflict resolution.