Man Admits Robbery Before Crash That Killed Nun In Harlem

NEW YORK (CBSNewYork/AP) -- A man has admitted his role in a robbery spree that ended with a getaway-car crash that killed an 83-year-old nun in Harlem nearly two years ago.

William Robbins pleaded guilty Tuesday to robbery. The 20-year-old has been promised a 15-year prison term at a sentencing next month.

Robbins and co-defendant Dyson Williams committed several holdups on June 22, 2010, prosecutors said. In a plea deal, Robbins admitted helping Williams in one of them.

Authorities said Williams was behind the wheel of the getaway car when it slammed into a minivan and a group of pedestrians, including Sister Mary Celine Graham.

Graham was killed in the collision. Four other people were hurt.

The 22-year-old Williams pleaded guilty earlier this month to murder and other charges. He's due to get 17 years to life in prison.

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