| Highlights from the May 4 commemoration: "For 25 years I avoided talking to Mary Ann because I thought I had ruined her life." - photographer John Filo, who won a Pulitzer Prize for his photo of Mary Ann Vecchio over Jeffrey Miller's dead body. "She inspired me to believe that the world can be changed by one person, just like you and me." - Laurel Krause, on her sister Allison Krause, one of the four students killed on May 4, 1970 |