A shooting inside the Instituto São José in central Rio Branco, Acre, left two staff members dead and at least two other people injured on the event date, according to the supplied report.
Police said the suspected gunman was a 13-year-old student who was taken into custody after the attack. The report says the teenager used a weapon belonging to his stepfather, and that the shots were fired in a corridor leading to the school administration office. The school did not descend into a full campus-wide assault, and the attack was described as unfolding in a contained area rather than inside classrooms.
The dead were identified in the report as two female employees of the school. A student was also struck in the leg, and another adult was injured, though the latter was not said to be seriously hurt. The evidence packet does not provide the names of the victims or more detail about their medical condition beyond the initial report that the student’s injury was not severe.
Authorities were still responding as the situation developed. Security and emergency teams remained on site, while the Acre justice and public security secretary had not yet issued an official statement in the supplied reporting. That means the publicly available account remained preliminary, with the most basic facts still being confirmed as investigators worked at the scene.
The incident raises familiar questions about access to weapons, school security and the capacity of authorities to respond quickly when violence erupts in a learning environment. The report gives a specific account of how the attack happened: a student entered a corridor near the direction office and fired a gun that was said to belong to a relative. That detail will likely be central to any later inquiry into how the firearm was stored and obtained.
Because the suspect is a minor, the case is also likely to move through a different legal path than an adult mass-casualty shooting. The supplied evidence stops short of describing charges, court procedures or the teenager’s immediate status beyond custody. It also does not establish a motive.
Even with those limits, the facts already show a serious and abrupt breach of safety inside a school building in the state capital. Two employees were killed, a student and an adult were wounded, and police had already detained the suspect while the scene remained active.
The short initial timeline in the report suggests authorities were still assembling the full sequence of events. That caution matters: in fast-moving school attacks, early reports can shift as investigators interview witnesses, examine the weapon and review who was in the corridor when the shots were fired. For now, the clearest verified points are the death toll, the detention of the suspect and the use of a firearm said to belong to his stepfather.
The event date in Rio Branco adds another grim entry to the list of school violence cases that draw immediate public attention because they combine the vulnerability of children and staff with the fast spread of fear through a familiar space. The evidence here remains limited, but the basic outline is already stark: a 13-year-old suspect, a school corridor, two dead employees and multiple injuries in a city center school.
