Pvt. Arthur "Bud" Kelder served as a dental assistant in the Army during World War II. Courtesy of the Kelder family hide caption

itoggle caption Courtesy of the Kelder family

A memorial at the site of the first explosion in the Boston Marathon bombing. Defense attorneys say too many people in the potential jury pool have some kind of personal connection to the case. Andrew Burton /Getty Images hide caption

itoggle caption Andrew Burton /Getty Images

Sen. Rand Paul, R-Ky., center, meets with members of the Londonderry Fish and Game Club in Litchfield, N.H., on Jan. 14. Paul was one of three GOP presidential hopefuls who attended Sunday's semiannual gathering of David and Charles Koch's donor network in California. Jim Cole/AP hide caption

itoggle caption Jim Cole/AP