Overview
- Multiple law enforcement sources say investigators have internally identified a person they believe may be connected to both cases, but no name has been released and no arrests have been announced.
- Two Brown students, Ella Cook and Mukhammad Aziz Umurzokov, were killed and nine others injured on Dec. 13 when a gunman opened fire inside the Barus & Holley engineering building using 9mm rounds.
- MIT professor Nuno F. G. Loureiro, 47, was shot at his Brookline home on Dec. 15 and died the next day, and authorities are now comparing evidence across jurisdictions to assess a possible connection.
- Police have released grainy images and video of a masked person of interest, a map expanding the area of focus near Brown, and photos of another individual seen nearby who may have information.
- The FBI is offering a $50,000 reward as investigators cite limited camera coverage, report hundreds of tips, confirm no recovered weapon, and warn against speculation about motive.