The explosions came just after a sermon preceding the Muslim Friday prayer. The first detonated inside the school mosque; the second struck the canteen area moments later. Students and staff were hurled into chaos. At least 96 people were injured, many suffering burns and lacerations from glass shards, and victims were rushed to hospitals across Jakarta. Initial reports were confused -- some witnesses believed the explosions came from the public address system or from gas cylinders in the mosque. The perpetrator's own fate was disputed in the first hours; early reports claimed he had been shot dead on nearby Ganesha Road, about 200 meters from the school. Authorities later confirmed he had survived, undergone surgery, and was recovering in a hospital. He was a student at the school, a juvenile classified under Indonesian law as a "Child in Conflict with the Law" -- under 18 and subject to juvenile justice procedures focused on rehabilitation rather than criminal sentencing.

Investigators found an airsoft rifle, a revolver, and a tactical vest inside the mosque. The gun bore English-language inscriptions referencing far-right iconography: the 14 Words white supremacist slogan, the symbol of the Romanian Iron Guard, a reference to the Latvian Waffen-SS, and the word "Agartha" -- a concept linked to esoteric neo-Nazism. "Welcome to Hell" was written on the bolt cover. The perpetrator's diary, confiscated by police, documented a path of isolation: constant bullying, a broken family, and a deepening immersion in online gore sites and Terrorgram channels. There he encountered pro-school-shooting circles fixated on the Columbine and Christchurch attacks. Police identified seven previous far-right attackers who had inspired the bomber, including Eric Harris and Dylan Klebold, Dylann Roof, Alexandre Bissonnette, Vladislav Roslyakov, Brenton Tarrant, and Natalie Lynn Rupnow. By late November, most of the Terrorgram channels the suspect had followed had been removed by Telegram.

The investigation rippled far beyond one school in North Jakarta. By 30 December 2025, police revealed that 68 children and teenagers across 18 provinces were connected to the bomber through an online Telegram community called the "True Crime Community," where members were exposed to white supremacist and neo-Nazi ideologies. Densus 88, Indonesia's counter-terrorism unit, reported that its cyber patrols had prevented 20 planned school attacks in the weeks following the bombing. Five individuals were identified as running an unnamed neo-Nazi network that aimed to recruit 110 children and teenagers from 23 provinces through Telegram channels and violent video games. By 7 January 2026, police had secured 70 young people from 19 provinces -- aged 11 to 18, most in 7th through 9th grade -- all connected to Terrorgram-affiliated groups. Some had already drawn up detailed attack plans: mapping school CCTV systems, choosing locations for bombs in classrooms, and rehearsing how to kill classmates and teachers. One had produced bomb-making manuals in English.

Indonesia's counter-terrorism apparatus had been built to confront Islamist extremism. The Jakarta school bombing forced an uncomfortable recalibration. Terrorism researcher Al Chaidar of Malikussaleh University estimated the Indonesian neo-Nazi network at approximately 300 members, nearly all under 17 -- a deliberate recruitment strategy, he argued, since juvenile perpetrators face far lighter legal consequences. He urged the government to expand its deradicalization programs beyond Islamic terrorism to encompass other extremist ideologies. Criminologists at the National Counter Terrorism Agency (BNPT) echoed the call, though the BNPT itself hesitated to classify the school bombing as terrorism, noting it lacked the organizational structure typically associated with that designation. The connection to international violence became unmistakable on 16 December 2025, when a perpetrator of a school attack in Odintsovo, Russia, inscribed "2025 Jakarta Bombing" on his knife handle. Police also identified links between Indonesian neo-Nazi circles and Malaysian far-right groups.

President Prabowo Subianto expressed deep concern and called for swift protective action. The government floated restrictions on weapon-themed video games, with officials specifically citing PUBG: Battlegrounds as dangerous for children. Psychological recovery teams were deployed to SMAN 72 to support traumatized students, teachers, and staff. The broader response, however, moved in more structural directions. On 7 January 2026, police published a list of 27 Indonesian neo-Nazi Terrorgram circles. Because the linked suspects were juveniles who had not yet carried out attacks, authorities chose counseling and preventive intervention over prosecution -- a pragmatic response shaped by the reality that Indonesia's juvenile justice system offers limited tools for ideological cases. The bombing at SMAN 72 killed no one, but it punctured the assumption that far-right extremist violence was a Western phenomenon. For Jakarta, the afternoon of 7 November 2025 became a reckoning: the understanding that radicalization pipelines built in one language and culture had found fluent translators half a world away.