Recent updates shed light on the alleged gunman behind the tragic events involving an MIT scientist and two Brown University students. A senior Portuguese nuclear fusion official suggested to the Daily Mail that the suspect may have targeted the victims, potentially viewing them as embodiments of success he never achieved.

Authorities have identified Nuno Loureiro, aged 47, as the world-renowned fusion-energy researcher and director of MIT’s Plasma Science and Fusion Center, who was fatally shot on December 15. The suspected shooter, Claudio Neves-Valente, 48, was once a promising physics talent from Portugal. He reportedly took his own life following a widespread search spanning multiple states.

The investigation took a significant turn when Neves-Valente was linked to a mass shooting at Brown University that occurred just days before. On December 13, Neves-Valente allegedly opened fire within a campus building, resulting in the deaths of two students and injuries to nine others. Police later confirmed his involvement in the subsequent murder of Loureiro at the victim’s home in Brookline, Massachusetts, on December 15.

Neves-Valente, a former student at Brown University, studied physics from 2000 to 2001 before leaving the program by 2003, according to Christina Paxson, President of Brown University. She noted that Neves-Valente had no recent connections with the university during the time of the campus shooting.

Federal prosecutors in Massachusetts have released an image of the individual identified in the fatal shootings at both Brown University in Rhode Island and the Massachusetts Institute of Technology in Cambridge. (Justice Department)

According to the Daily Mail, Dr. Bruno Goncalves, president of Portugal’s Institute of Plasma and Nuclear Fusion, said Neves-Valente did not maintain any known relationship with Loureiro in the decades after they studied together there, underscoring that the attack was not the result of an ongoing rivalry or dispute.

Instead, Goncalves said Neves-Valente may have fixated on what Loureiro had come to represent.

“The strongest theory is that Claudio saw Nuno as a symbol of the academic and professional success that he himself had failed to achieve,” Goncalves said.

He stressed that the resentment was one-sided and did not exist during their student years.

“It’s not a rivalry that existed at the time,” Goncalves said, adding that it “developed later.”

Goncalves also rejected claims that institutional pressure or academic culture bore responsibility for the violence, telling the Daily Mail that Portugal’s elite technical universities provide psychological support and that many graduates successfully transition into other careers.

MIT professor Nuno Loureiro was shot at this Brookline apartment building. (Michael Dorgan/Fox News Digital)

“It was not the course,” he said. “It was how Claudio chose to respond to the course.”

While noting that Neves-Valente may have struggled after leaving elite academia, Goncalves emphasized that others in similar circumstances did not resort to violence.

“It’s strange,” Goncalves said, according to the Daily Mail, “that he didn’t just try to make something of himself in another field, like many IST students do.”

Images of Claudio Manuel Neves-Valente were displayed on a projector screen at a news briefing in Providence, Rhode Island. The 48-year-old former student and Portuguese national has been identified as the gunman behind a mass shooting that killed two students and wounded nine. (Andrea Margolis/Fox News Digital)

Law enforcement officials said Loureiro had no recent contact with Neves-Valente and described the attack as a deliberate, unilateral act of criminal violence carried out against a victim unconnected to his personal or professional failures.

At the time of his death, Loureiro was widely regarded as one of the leading figures in fusion-energy research.

MIT professor Nuno Loureiro was shot at his home on Monday, Dec. 15. (Jake Belcher)

Loureiro met last year with Rafael Grossi, director general of the International Atomic Energy Agency (IAEA), both at MIT and at an international fusion summit in Rome that brought together senior government officials, scientists, and global energy leaders.

He was also recently named a recipient of the Presidential Early Career Award for Scientists and Engineers (PECASE), the highest honor awarded by the U.S. government to early-career researchers, with recipients recognized at the White House.

Goncalves told Fox News Digital previously that Loureiro was “leading one of the top research institutes in fusion” and was “very well known and recognized internationally for his contributions and his leadership.”

Loureiro lived in a Brookline condominium with his wife and three daughters. His mother-in-law was visiting at the time of the shooting, according to the Daily Mail. Friends and neighbors described the family as quiet and close-knit, and authorities have said there is no indication Loureiro anticipated any threat.

Stepheny Price covers crime, including missing persons, homicides and migrant crime. Send story tips to stepheny.price@fox.com.