Updated

A rapper who once was signed to a label run by Jay-Z has admitted taking part in a deadly stabbing in a New York apartment building lobby.

Tru Life, born Robert Rosado, pleaded guilty Wednesday to gang assault in a June 2009 attack that killed Christopher Guerrero and wounded another man. The rapper's brother Marcus Rosado pleaded guilty to manslaughter in Guerrero's death.

The 34-year-old rapper's plea deal calls for eight years in prison. His older brother is expected to get 10 years.

The brothers' lawyers say their clients hope their acceptance of responsibility provides some closure for Guerrero's family.

Tru Life was once being groomed to be a linchpin of Roc-La Familia, a Latin-oriented arm of Roc-A-Fella Records. His lawyer says he no longer has a recording deal.