The Latest on the sentence of the Catherine Greig, the longtime girlfriend of gangster James "Whitey" Bulger (all times local):

4:10 p.m.

The longtime girlfriend of gangster James "Whitey" Bulger has been sentenced to an additional 21 months in prison for refusing to testify before a grand jury investigating whether other people helped Bulger while he was a fugitive.

Catherine Greig already is serving an eight-year prison term for helping Bulger evade capture during the couple's 16 years on the run together. They were captured in Santa Monica, California, in 2011.

On Thursday, federal prosecutors asked the judge to add a little over three years to her prison time for her conviction on a criminal contempt charge. Greig's lawyer asked for leniency and said she should not get any more than six months.

The 86-year-old Bulger is serving a life sentence after being convicted in 2013 for his role in 11 murders.

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12:30 a.m.

Prosecutors will ask a federal judge to sentence the longtime girlfriend of Boston gangster James "Whitey" Bulger (BUHL'-jur) to three more years in prison for refusing to testify about whether anyone else helped Bulger after he fled the city.

Catherine Greig (grehg) already is serving an eight-year sentence for helping Bulger during his 16 years on the run. They were captured in Santa Monica, California, in 2011.

Greig is scheduled to be sentenced Thursday after pleading guilty to a criminal contempt charge for refusing to testify before a grand jury.

Her lawyer argues that no more than six months should be added to her sentence.

The 86-year-old Bulger was convicted in 2013 for playing a role in 11 murders. He's serving a life sentence.