A federal judge handed a time-served sentence Tuesday to a longtime Chicago-area drug dealer who pushed “off the charts” amounts of narcotics but then spent seven years helping prosecutors secure charges against dozens of people, including the late state Sen. Martin Sandoval.
Assistant U.S. Attorney Andrew Erskine argued in court that Rudolph Acosta III, once known as “King Rudy,” became “one of the most prolific and successful cooperators with our office, probably in the last decade or so” — a high bar in a city where many cooperators of note have been unmasked in recent years.
