Federal authorities continue to investigate the mass shooting at Brown University and the killing of an MIT professor in Brookline, Massachusetts. The Department of Justice reported that on December 18, 2025, investigators executed a federal search warrant at a storage facility used by Claudio Manuel Neves Valente, identified as the perpetrator in both incidents.
During the search, FBI agents recovered an electronic device containing several short videos recorded by Neves Valente after the shootings. The Department of Justice has released transcripts of these videos, which were originally in Portuguese and have been translated into English.
According to officials, “In these videos, Neves Valente admitted that he had been planning the Brown University shooting for a long time. Although Neves Valente stated that Brown University was his intended target, based on initial review of the evidence collected, he did not provide a motive for targeting students at Brown University or the professor at MIT. Neves Valente showed no remorse during the recordings; on the contrary, he exposed his true nature when he blamed innocent, unarmed children for their deaths at his hand and grumbled about a self-inflicted injury he suffered when he shot the MIT professor at close range. Our investigation into the motives behind Neves Valente’s heinous acts will continue.”
Authorities say there is currently no indication of ongoing public safety threats related to these shootings. Updates will be provided as more information becomes available and after appropriate notification of victims’ families.