A former New York City nightclub bouncer has been sentenced to life in prison without parole for the brutal murder of a graduate student from Boston.

Darryl Littlejohn was convicted of first-degree murder last month in Brooklyn for the 2006 killing of criminal justice student Imette St. Guillen.

The case spurred a crackdown on New York City nightlife security.

Littlejohn is already serving 25 years to life for kidnapping another woman. The sentences are consecutive.

The victim's family made tearful statements at the sentencing on Wednesday.

Prosecutors portrayed Littlejohn as a sexual predator who liked to pretend he was a law enforcement officer.