(WASHINGTON) — A Maryland man who prosecutors say was inspired by the Islamic State group plotted to ram a stolen U-Haul truck into as many pedestrians as possible at a popular convention and tourist destination just outside the nation's capital, federal prosecutors said Monday.The allegation was made in a court filing Monday as prosecutors in Maryland urged a judge to keep the defendant, 28-year-old Rondell Henry, detained on a charge of driving a stolen vehicle across state lines.