Dozens of Michigan State University (MSU) students accompanied by parents, friends, and FBI agents returned to the student union Wednesday, forced to relive the harrowing trauma of the nation's most recent mass shooting. The night before, students had rushed out of the building after shots rang out, leaving behind personal belongings in their rush to safety.

Connor Dunn, an 18-year-old mechanical engineering student who was in the food court when the shooting started, remembered thinking the sound had been a dropped tray. When he heard the second and third shots, however, he realized something was wrong and quickly ran outside. Andrew Strominger, another sophomore who was working in the food court, ran out a back door to Campbell Hall and stayed there until law enforcement arrived.

The tragedy left three MSU students dead: Alexandria Verner of Clawson, Michigan; Brian Fraser of Grosse Point