On March 7, 1965, hundreds gathered in Selma, Ala., to march to Montgomery in support of civil and voting rights. That day came to be known as “Bloody Sunday” when marchers were violently attacked by law enforcement at the Edmund Pettus Bridge. Rev. Martin Luther King led a second march to the bridge two days later. A third march began March 21, swelling to include some 25,000 people by the time it reached Montgomery’s Capitol March 25. Among those thousands in Montgomery was a young priest from Syracuse, Father Thomas Costello.