Catherine Greig, girlfriend of Boston mobster James 'Whitey' Bulger, sentenced to 8 years in prison

(CBS/AP) BOSTON - A judge sentenced Catherine Greig, longtime girlfriend James "Whitey" Bulger, to eight years in prison on Tuesday for helping the Boston mobster stay on the run for 16 years.

Pictures: Guns and Money: Whitey Bulger evidence

Authorities captured the couple in Santa Monica, Calif. last June. Greig, 61, plead guilty in March to charges of conspiracy to harbor a fugitive, identity fraud and conspiracy to commit identity fraud.

Bulger, 82, is awaiting trial on charges that he participated in 19 murders.

The couple posed as married retirees from Chicago and had a stash of more than $800,000 in cash and 30 weapons upon capture, according to prosecutors.

Prosecutors asked for a decade prison sentence for Greig while her attorney sought for a more lenient sentence of 27 months.

Complete coverage of Whitey Bulger on Crimesider