NEW YORK -- A man accused of cheating Hispanic immigrants out of $280,000 by posing as a federal agent and promising them green cards and other documents he never delivered was sentenced Monday to three to six years in prison. John Nevarez, 55, of Manhattan, was sentenced after state Supreme Court Justice Edward McLaughlin refused to let him withdraw his prior guilty plea. Last month, Nevarez pleaded guilty to third-degree grand larceny for the immigration fraud. Nevarez, who worked out of an East Harlem basement, used a fake badge and identification to convince immigrants he was a federal agent who...