Last defendant in investigation of Bernard Madoff's massive fraud gets 6 months in prison

The last defendant charged in the Bernard Madoff case has been sentenced to six months in prison.

Irwin Lipkin received the sentence on Wednesday in federal court in Manhattan.

The 77-year-old Lipkin had pleaded guilty to falsifying records as a comptroller for Madoff's firm. He is among 15 defendants who have either pleaded guilty or were convicted at trial for helping Madoff pull off his massive Ponzi scheme that bilked investors of billions of dollars.

Madoff has been serving a 150-year sentence since 2009.