ROCK HILL --Nearly 47 years after U.S. Rep. John Lewis was beaten in a civil rights protest here, Rock Hill Mayor Doug Echols will apologize to Lewis at the 5th Annual Martin Luther King Jr. Interfaith Prayer Breakfast. Lewis is the keynote speaker at Monday's sold-out event, whose theme this year is "Remember, Act, Celebrate." "It was a horrible thing that happened here to Congressman Lewis and an apology is long overdue," said Echols, who was a high school sophomore in Mulberry, Fla., when the incident happened. "There is no excuse for the beating he took at the Rock Hill...