A former attorney whose cooperation aided the conviction of three New York state senators has been sentenced to 18 months in prison by a judge who said his crimes were too serious to let him escape incarceration.

Anthony Mangone of Purchase, New York, was sentenced Monday in Manhattan.

Federal Judge Colleen McMahon called Mangone a “dirty lawyer.” She says he would have received a harsher sentence as a career criminal had he not cooperated.

Mangone’s cooperation since January 2010 and his testimony aided the prosecutions of three state senators and three other public officials.

The 42-year-old defendant apologized for his crimes.

A prosecutor called his cooperation “complete and truthful” and his lawyer called it “remarkable.”

It seems shark sightings are dominating headlines on Long Island and researchers are on a quest to find out why more sharks are showing up in Long Island waters. NewsdayTV meteorologist Rich Von Ohlen discusses how to stay safe.  Credit: Newsday/A. J. Singh; Gary Licker

'Beneath the Surface': A look at the rise in shark sightings off LI shores It seems shark sightings are dominating headlines on Long Island and researchers are on a quest to find out why more sharks are showing up in Long Island waters. NewsdayTV meteorologist Rich Von Ohlen discusses how to stay safe. 

It seems shark sightings are dominating headlines on Long Island and researchers are on a quest to find out why more sharks are showing up in Long Island waters. NewsdayTV meteorologist Rich Von Ohlen discusses how to stay safe.  Credit: Newsday/A. J. Singh; Gary Licker

'Beneath the Surface': A look at the rise in shark sightings off LI shores It seems shark sightings are dominating headlines on Long Island and researchers are on a quest to find out why more sharks are showing up in Long Island waters. NewsdayTV meteorologist Rich Von Ohlen discusses how to stay safe. 

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