Claudio Manuel Neves Valente spent years brooding over perceived slights and personal defeats before he walked onto the Brown University campus in December and opened fire, killing two students and wounding nine others, federal authorities revealed Wednesday.
The 48-year-old Portuguese national, who also fatally shot MIT professor Nuno Loureiro at his home and then took his own life days later, had begun plotting violence as early as 2022, the FBI's Boston division said after concluding a major phase of its investigation.
Investigators found that Neves Valente was driven by what they described as an "accumulation of grievances." He saw Brown University and Loureiro as representations of his own failures and the injustices he believed others had inflicted on him over decades. In confessional videos and audio recordings made after the attacks, Neves Valente detailed his motivations but expressed no remorse.
The gunman had attended Brown two decades earlier, after studying physics in Portugal alongside Loureiro. He withdrew in 2001 and left the country. He returned to the United States in 2017 with legal permanent residency and was living in Florida when he carried out the attacks on December 15 and 18.
According to the FBI, Neves Valente's downward spiral was fueled by unemployment, an outsized sense of self-worth, and a growing paranoia about his treatment by others. As his failures accumulated, he became increasingly unstable. The agency concluded he acted alone and determined that his victims were symbolic targets rather than chosen for specific personal reasons.
A critical vulnerability in preventing the violence, the FBI noted, was Neves Valente's isolation. He had no family or close friends who might have noticed warning signs and alerted authorities. This social detachment allowed his grievances and plans to develop unchecked.
Author James Rodriguez: "A decade-long grudge that festered into mass murder shows how dangerous the combination of isolation, delusion, and access becomes."
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