Brown U. gunman shouted something before opening fire as ‘person of interest’ is busted | 14 Dec 2025 | A “person of interest” in the Brown University mass shooting is in custody following an 11-hour manhunt — as witnesses revealed he shouted something before opening fire. Two students were killed and nine others wounded in the attack on a final exam study session. Witnesses said that the gunman shouted something, but revealed they were not sure exactly what. Detectives are still trying to figure out what the gunman said, authorities revealed. It was also revealed that the gunman had a firearm with unique characteristics that helped cops tie him to the deadly shooting, according to NBC News.