Last week, lauded theoretical physicist and director of the MIT Plasma Science and Fusion Center Nuno Loureiro was murdered in his home in Brookline, Massachusetts. Since then, investigators have made several breakthroughs in the unusual case, linking the prime suspect to a separate deadly mass shooting at Brown University earlier in December. The suspected shooter, Claudio Neves Valente, was found dead in a storage unit in New Hampshire on Thursday following a six-day manhunt. Neves Valente attended the same school " Lisbon's Instituto Superior Técnico " as his future victim, Loureiro, where they were both students between 1995 and 2000. Neves Valente eventually pursued his graduate studies at Brown, linking him to the second institution where he's suspected of committing a deadly shooting. Former Brown physics professor Scott Watson, who spent a lot of time with Neves Valente at Brown, said he became "sometimes angry" about life at Brown in esoteric ways " complaining about the quality of the fish he was served, for instance. Neves Valente left Brown in early 2001 and returned to Portugal. Classmates have suggested he may have become jealous of Loureiro's illustrious career. Roughly an hour before Neves Valente opened fire on students in a Brown lecture hall, a witness noticed he was wearing a mask and flimsy clothing, leading to an altercation. All told, Neves Valenete killed three individuals and injured nine.