Cleveland ? A man who went on a shooting spree at Case Western Reserve University was sentenced to life in prison without parole Friday and hesitantly apologized to the family of the graduate student who died.

For 30 minutes in court, Biswanath Halder blamed the university he once attended for forcing him to resort to violence and said the victims were innocent bystanders.

Judge Peggy Foley Jones then prodded him to apologize, noting that the family of victim Norman Wallace was in the courtroom.

Halder, 65, who did not testify at his trial, was convicted in December of aggravated murder and other charges for the shootings of three people during a 7 1/2-hour siege in May 2003.

In a jail interview, Halder blamed the university for a hacker who had wrecked his Web site meant to help business entrepreneurs from his native country, India.