On Monday, Dec 15, gunshots rang out on Gibbs Street in Brookline, Mass. Worried neighbors immediately contacted the police and emergency responders rushed to the scene. They arrived at around 8:30 pm and discovered an adult male with multiple gunshot wounds, which would soon prove to be fatal.
The victim was soon identified as 47-year-old Nuno Loureiro, a Portuguese national who was among the world’s top nuclear researchers. Loureiro was the director of the MIT Plasma Science and Fusion Center and a member of MIT’s departments of Nuclear Science & Engineering and Physics.
Quite intriguing story… Nuno Loureiro was Portuguese nuclear physicist who had joined MIT in 2016 and led one of their largest labs since last year. https://t.co/VssyYKAwIn
— Marta Dhanis (@MartaDhanis) December 16, 2025
Cops are currently being very cagey about specific details, with Brookline Police Deputy Superintendent Paul Campbell only confirming that Loureiro “had been shot multiple times.”
An MIT spokesperson told the New York Post: “Our deepest sympathies are with his family, students, colleagues, and all those who are grieving. Focused outreach and conversations are taking place within our community to offer care and support for those who knew Prof. Loureiro, and a message will be shared with our wider community.”
Sad to hear of Nuno Loureiro’s passing. He was already a leading plasma physicist of our generation, with an exceptional scientific trajectory ahead of him, and a wit that those who knew him will never forget.
— 𝙹𝚘𝚊𝚑 (@JoahSantos) December 16, 2025
The last time we spoke, he had a wife and three children, who are no… pic.twitter.com/3AGSa3qu1x
One of the men leading the way to sustainable fusion energy
Loureiro’s research was primarily focused on making nuclear fusion a viable and sustainable source of energy, and he authored over 60 research papers contributing to the field, including studies on plasma turbulence and magnetic reconnection in fusion devices.
Notably, Loureiro’s home was just 50 miles away from Brown University, the site of a mass shooting over the weekend where the suspect is still at large. Realizing that the public may conclude the two incidents are linked, FBI Special Agent in Charge Ted Docks underlined that they currently don’t believe there’s a connection, telling reporters: “At this time, there seems to be no connection as it related to that particular incident.”
With so few details, all we can do is theorize. Maybe this is a burglary gone wrong, maybe it’s a personal matter, or – more outlandishly – maybe someone decided that eliminating Loureiro would slow down or stop critical scientific research into clean energy. For now, all we can do is wait for more details, though it certainly appears that something fishy is afoot.
