Man who killed student gets 120-year sentence

A man convicted of being an accomplice in the 2007 murder of a University of Chicago doctoral student from Senegal has been sentenced to 120 years in prison.

Demetrius Warren was accused of gunning down 29-year-old chemist Amadou Cisse while carrying out a series of robberies near the university's campus.

Cisse's godmother, Czerny Brasuell, read a statement to the court Wednesday in which she said the murder left Cisse's family devastated. She said Cisse's mother "lives in a state of astonishment" while a brother struggles with "survivor's guilt."

A co-defendant, Eric Walker, testified against Warren in exchange for a 20-year sentence for armed robbery. Benjamin Williams and Jamal Bracey pleaded guilty to the murder last year. Williams was sentenced to 53 years in prison. Bracey received a 35-year term.