Charlestonians are again gearing up for Piccolo Spoleto, arguably the biggest event of the year in the Lowcountry. Theatrical production The Exonerated, the recipient of The National Association of Criminal Defense Lawyers’ 2003 Champion of Justice Award, will return to the line up this year.     The choice is not a surprising one, considering the violent headlines Charleston residents have seen in the past few months. Charleston’s Midtown Productions debuted The Exonerated last fall. The show pulls from actual events, citing interviews, case files and even public records, making it both compelling and relevant to today’s times. The stories paint a bleak portrait of our justice system.     Not only will this show be a highlight of Spoleto, it is also raising funds for an important cause. Midtown will donate 15% of ticket sales to The Innocence Project once they reach their goal of $5,000. The Innocence Project is a national litigation and public policy organization dedicated to exonerating wrongfully convicted U.S. citizens.