Authorities have identified a person of interest in the Brown University mass shooting, three senior law enforcement officials briefed on the investigation told NBC News. This comes after days of intense investigation and a manhunt for a gunman who opened fire inside the Barus and Holley engineer ing building on the Providence, Rhode Island, campus on Saturday. Two students were killed and nine other people injured. Another person of interest was previously taken into custody, but that person was eventually released when investigators ruled them out as a suspect. Investigators released a series of surveillance videos and images of a person of interest, asking the public for help with the search. The shooting has raised questions about safety and security on Brown’s campus and concerns about misinformation and AI-generated images circulated online due to the high-profile nature of the case. Investigators are looking into whether the Brown shooting may be linked to the killing of an MIT professor at his Brookline, Massachusetts, home this week. More on the Brown University shooting Shootings 11 hours ago Live updates: Investigation in New Hampshire believed tied to Brown shooting Shootings 6 hours ago Police looking into whether MIT professor's killing could be linked to Brown shooting This is a breaking story. Check back for updates. ...read more read less