{"schema_version":"0.10.0","id":"LR-2026-0507","record_version":1,"title":"Nebraska middle school teacher accused of generating AI child abuse images","verification":{"human_verified":false,"method":"automated_gate","auto_verified":true,"score":51.2,"score_breakdown":{"source_authority":12.1,"independent_corroboration":15.0,"implicated_party_confirmed":0.0,"citation_integrity":14.0,"specificity":0.0,"completeness":2.56,"unhedged_language":5.0},"checks":{"schema_valid":true,"every_field_cited":true,"quotes_verbatim":true,"source_fetched":true,"distinct_incident":true,"dates_plausible":true,"sources_agree":true,"source_describes_incident":true,"severe_backed_by_source":true,"record_integrity":true,"eligible":true,"about_this_case":true},"gate_version":"gate-2026-10-18.7","cross_check_model":null,"cross_check_agreement":null,"duplicate_of":null,"verified_by":null,"verified_at":"2026-11-01","extraction_run_id":null,"evidence_level":{"level":"preliminary","reason":"Publisher not yet named · subject to change","original_document":null,"reports_total":2,"reports_independent":0,"reports_derivative":0,"developing":false,"disputed":false,"rules_version":"evidence-2026-10-29.1","computed_at":"2026-11-01","history":[{"date":"2026-11-01","from_level":null,"to_level":"preliminary","reason":"Publisher not yet named · subject to change"}]},"sources_hash":"d89e8918dc81b09c48fc0569bdc721f3ce48a44df5e4b9b49b8f27df12b1f632"},"system":{"model_name":null,"model_version":null,"developer":"unknown","harness":null,"tools_granted":[],"permissions_scope":null,"autonomy_level":"unknown","guardrails_present":[],"deployment_context":"unknown","tier":null,"lifecycle_stage":null,"integration_type":null,"intended_use":null,"safeguard_state":null,"production_intended":null},"event":{"date_occurred":null,"date_disclosed":"2026-04-23","incident_class":"harmful_output","failure_class":null,"agent_involved":null,"secondary_failure_classes":[],"trigger":"unknown","duration":null,"detection_method":"third_party","summary":"A middle school science teacher in Omaha, Nebraska, was accused of using artificial intelligence to generate child sexual abuse images on a Google account. According to court documents, Google reported a tip in February 2026 about 423 uploaded media files, and investigators later traced the associated IP address to the teacher. Prosecutors said 104 files were consistent with child sexual assault material. The teacher was arrested and charged with possession and distribution of child pornography, and his bail was set at $1 million. Authorities said they did not believe any students were victims. The case is believed to be among the first charged under a Nebraska law that took effect in September and makes AI-generated child pornography illegal. The investigation was ongoing at the time of reporting.","tags":[],"date_detected":null,"near_miss":null,"root_cause":null,"root_cause_detail":null,"failure_class_detail":null,"responsible_party":null,"adversarial_actor":null,"input_provenance":null,"time_to_contain":null,"operations_paused":null,"remediation":null,"precursor_events":null},"impact":{"direct_loss_usd":null,"remediation_hours":null,"records_exposed":null,"third_parties_affected_count":null,"severity":"minor","severity_because":"Test: minor (contained to one individual's account, no third party touched). Fact: NSP said it did not believe any of the teacher's students were victims in the case.","harm_class":[],"affected_description":null,"protected_class_involved":null,"data_categories_exposed":[],"loss_range_usd":null,"reversibility":null,"downstream_exposure_count":null},"evidence":{"sources":[{"url":"https://www.wowt.com/2026/04/23/millard-middle-school-teacher-generated-423-child-porn-images-using-ai-records-say/","publisher":"WOWT","date":"2026-04-23","type":"press","title":"Millard middle school teacher generated 423 child porn images using AI, records say - WOWT","archived_url":null,"attachment":"first_report"},{"url":"https://nypost.com/2026/04/24/us-news/middle-school-teacher-hiding-in-plain-sight-allegedly-produced-423-child-sex-abuse-images-using-ai-pleasured-himself-at-work/","publisher":"New York Post","date":"2026-04-24","type":"press","title":"Depraved middle school teacher allegedly used AI to make hundreds of images of child porn — then looked at it at work - New York Post","archived_url":null}],"per_field_confidence":{"event.detection_method":"C","context.industry":"C","event.incident_class":"D","impact.severity":"D","impact.severity_because":"D","event.summary":"C","system.autonomy_level":"D","system.deployment_context":"D","event.trigger":"D","context.country":"D","system.developer":"D","event.date_disclosed":"D","context.denominator_available":"D"},"field_citations":{"event.detection_method":[{"source_index":0,"quote":"Documents state that the case was initiated earlier Feb. 23, when Google reported a tip about 423 uploaded media files the National Center for Missing and Exploited Children."}],"context.industry":[{"source_index":0,"quote":"Andersen Middle School teacher Matthew Lund, 47, was arrested Wednesday after the Nebraska State Patrol served a warrant at his Omaha home at 6:15 a.m."}],"event.incident_class":[{"source_index":0,"quote":"Documents released on Thursday indicated that the 423 images investigators found were generated through artificial intelligence while he was at work at Andersen Middle School, according to Lund."}],"impact.severity":[{"source_index":0,"quote":"NSP said Wednesday they didn’t believe any of his students were victims in the case."}],"impact.severity_because":[{"source_index":0,"quote":"NSP said Wednesday they didn’t believe any of his students were victims in the case."}],"event.summary":[{"source_index":0,"quote":"Documents state that the case was initiated earlier Feb. 23, when Google reported a tip about 423 uploaded media files the National Center for Missing and Exploited Children."},{"source_index":1,"quote":"“104 files consistent with child sexual assault … depicting ranging from infant to approximately 12 years old,” prosecutors said."},{"source_index":0,"quote":"His bail was set at $1 million on Thursday."},{"source_index":0,"quote":"NSP said Wednesday they didn’t believe any of his students were victims in the case."},{"source_index":0,"quote":"“I think this might be the first one our office has charged under the new law,” said Brenda Beadle, deputy Douglas County attorney."}]},"notes_on_gaps":"No AI system, model, developer, harness or deployment is named in the sources, so system fields are left out. The sources do not state when the images were generated, so date_occurred is omitted. The arrest is dated only as Wednesday and the court appearance as Thursday; I took the disclosure date as the 2026-04-23 Thursday of the WOWT report, which is my inference from the article date. No controls were stated as held, failed or missing, and no remediation was reported. Severity minor is my judgement: the only stated facts are one individual's account and NSP's statement that no students were believed to be victims, and the sources do not state whether real children were depicted. The trigger and actor fields reflect the prosecutor's account of the teacher's admission. The risk RK12 is my mapping of the generated content to harmful content, not a stated policy breach. [case created by the backfill: read by claude-haiku-5-5, backfill-2026-11-01.2, 2026-11-01; not yet reviewed] [2026-11-01: evidence level set: Preliminary (Publisher not yet named · subject to change)]"},"context":{"industry":"education","org_size_band":null,"country":"unknown","denominator_available":false,"denominator":null,"related_incident_ids":[],"systemic_exposure":null,"shared_model_id":null,"upstream_incident_id":null,"incident_evidence":null,"regulatory":null,"coverage":null},"narrative":{"steps":[{"step":"went_wrong","text":"Google reported a tip about uploaded media files to the National Center for Missing and Exploited Children.","quote":"Documents state that the case was initiated earlier Feb. 23, when Google reported a tip about 423 uploaded media files the National Center for Missing and Exploited Children.","source_index":0,"grade":"C"},{"step":"caught","text":"Investigators subpoenaed an internet provider for the IP address and identified the teacher as suspect.","quote":"NSP said they identified Lund as suspect after serving a subpeona on Cox Communications in Lincoln to get the IP address associated with the images.","source_index":0,"grade":"C"},{"step":"done","text":"The teacher was arrested at his home and charged with possession and distribution of child pornography.","quote":"Lund was arrested at his Omaha home early Wednesday on charges of possession and distribution of child pornography.","source_index":1,"grade":"C"}],"model":"claude-haiku-5-5","prompt_version":"backfill-2026-11-01.2","extracted_at":"2026-11-01","source_urls":["https://www.wowt.com/2026/04/23/millard-middle-school-teacher-generated-423-child-porn-images-using-ai-records-say/","https://nypost.com/2026/04/24/us-news/middle-school-teacher-hiding-in-plain-sight-allegedly-produced-423-child-sex-abuse-images-using-ai-pleasured-himself-at-work/"]},"analysis":{"sections":{"timeline":[{"text":"Google reported a tip about 423 uploaded media files; the case was initiated.","quote":"Documents state that the case was initiated earlier Feb. 23, when Google reported a tip about 423 uploaded media files the National Center for Missing and Exploited Children.","source_index":0,"when":"2026-02-23"},{"text":"Investigators identified the teacher as suspect after a subpoena for the IP address.","quote":"NSP said they identified Lund as suspect after serving a subpeona on Cox Communications in Lincoln to get the IP address associated with the images.","source_index":0,"when":null},{"text":"The teacher was arrested after a warrant was served at his home.","quote":"Andersen Middle School teacher Matthew Lund, 47, was arrested Wednesday after the Nebraska State Patrol served a warrant at his Omaha home at 6:15 a.m.","source_index":0,"when":"Wednesday"}]},"model":"claude-haiku-5-5","prompt_version":"backfill-2026-11-01.2","extracted_at":"2026-11-01","source_urls":["https://www.wowt.com/2026/04/23/millard-middle-school-teacher-generated-423-child-porn-images-using-ai-records-say/","https://nypost.com/2026/04/24/us-news/middle-school-teacher-hiding-in-plain-sight-allegedly-produced-423-child-sex-abuse-images-using-ai-pleasured-himself-at-work/"]}}