Federal investigators have released details of a disturbing confession video recorded by the man responsible for the deadly shooting at Brown University and the subsequent murder of an MIT professor, shedding new light on the mindset and preparation behind one of the most alarming academic-targeted attacks in recent years.

According to authorities, the video was recorded by Claudio Neves Valente, a 48-year-old former Brown University graduate student, shortly before he took his own life at a storage facility in New Hampshire. In the recording, Valente openly admits to planning the December 13, 2025, shooting at Brown University, where two students were killed and nine others were wounded. Investigators say the video shows no remorse and contains explicit acknowledgments of intent, planning, and grievance.

Valente described harboring a long-standing grudge against university staff that he claimed spanned more than two decades. In the video, recorded in Portuguese, he blamed individuals he targeted and justified his actions through personal resentment rather than expressing regret or responsibility.

Authorities confirmed that after the Brown University attack, Valente traveled across state lines and carried out a second targeted killing in Brookline, Massachusetts, where he murdered MIT nuclear physicist Nuno Loureiro at his home. The confession video reportedly references this act as well, indicating it was part of a broader plan rather than an isolated escalation.

The release of the video follows an extensive, multi-state manhunt that unfolded in the days leading up to Christmas, during which Valente evaded capture before ending his life. Federal officials continue to analyze digital devices recovered during the investigation in an effort to better understand his motivations, planning process, and any warning signs that may have been missed.

The case has reignited scrutiny over how long-term grievances tied to academic institutions are identified and addressed, particularly when individuals maintain historical affiliations but are no longer actively enrolled. Investigators emphasized that while no evidence currently points to accomplices, the findings underscore challenges in detecting deeply rooted threats before they turn violent.

Officials stressed that the investigation remains active and that lessons from the case will inform future threat-assessment and campus-security strategies nationwide.