Three students who survived Brown University’s December shooting have sued the university, alleging negligent security and premises liability. The complaints contend the institution’s access controls and monitoring were insufficient, arguing that a former student could enter and move through parts of the campus—including the auditorium where the shooting occurred—without meaningful secured-entry authorization. The allegations also describe prior warning signs and cite custodial concerns about suspicious behavior by the attacker in the building before the incident. Plaintiffs seek to connect those alleged failures to the injuries suffered during the attack. For universities, the lawsuits are part of a broader accountability cycle that puts building security design, incident reporting, and threat monitoring under litigation-grade scrutiny.