The vigil makes its final turn into the Prentice Hall parking lot as fog surrounds the light coming from the top floor of Taylor Hall. Volunteers took half-hour shifts standing vigil in the spots for Jeffrey Miller, William Schroeder, Allison Krause and Sandy Scheuer from midnight until 12:24 p.m. on May 4, which is the exact time National Guardsmen killed four students and wounded nine others.