UPDATE 6:34 p.m. EST: The university has issued an all clear alert: “Person with replica weapon identified. No danger. Resume normal activity.”
UPDATE 6:31 p.m. EST: Local news station KBTX tweets: “University officials and university police cannot confirm a gunman detained.” There is no other confirmation of NBC’s report about a cadet.
UPDATE 6:10 p.m. EST: NBC is now reporting that the “suspect” is a member of Texas A&M Corps of Cadets (similar to ROTC) who was walking with his rifle, according to @BreakingNews (an account owned by NBC).