A former New York City worker has pleaded guilty to defrauding the medical examiner's office of millions of dollars in federal aid sent to the city after the 2001 attacks. Rosa Abreu faces a maximum sentence of 55 years in prison when she is sentenced next year on charges of embezzlment and money laundering. The 41-year-old former employee of the chief medical examiner's office was indicted in 2005 and accused of helping to steer $11.4 million from the Federal Emergency Management Agency to companies that did little or not work.