Overview
- Six days after the Dec. 13 classroom attack that killed two students and injured nine, the gunman remains at large and the FBI is offering a $50,000 reward for tips leading to an arrest.
- Police released enhanced images and video of a masked person of interest and a map tracing confirmed streets the individual walked before and after the shooting, and they asked residents to review home and vehicle cameras.
- Authorities also shared photos of a separate individual who was in proximity to the person of interest and said they want to identify and speak with that person.
- Forensic teams recovered 9mm shell casings, live ammunition, and DNA from the scene, which are now under analysis; no weapon has been found and no motive has been established.
- Officials say limited camera coverage in the older part of the Barus & Holley building has complicated the probe, and they cautioned against misinformation as they review a possible link to the Brookline killing of MIT professor Nuno Loureiro that has not been confirmed.