Joseph Oduro was leading a study group at Brown University Saturday when a man carrying a gun walked into his classroom. He tells ABC News' Whit Johnson about the moment he looked the gunman in the eyes:

🎓 Moscow State University (MSU) Moscow State University is the largest single university building in the world. Founded in 1755, MSU is Russia’s oldest and most prestigious university. Its iconic main building rises 240 meters, making it one of the tallest academic buildings ever constructed. The main complex functions as a self-contained city, housing: • faculties and research institutes • libraries and lecture halls • student dormitories • theaters, shops and cafeterias • over 30 km of corrid