Catherine Greig, 64, appeared in federal court in Boston Monday

By Chris Harris
Updated October 19, 2015 06:10 PM
Credit: U.S. Marshals Service/AP

The longtime girlfriend of notorious Boston mobster James “Whitey” Bulger was back in Boston on Monday to plead not guilty to contempt of court charges stemming from her refusal testify before a grand jury about the couple’s time as fugitives.

PEOPLE confirmed that Catherine Greig, 64, entered her not guilty plea shortly after 1:30 p.m. on Monday before a U.S. Federal Magistrate Judge.

Greig’s lawyer, Kevin Reddington, says his client’s case was continued until Nov. 19.

Bulger’s rise in Boston’s criminal ranks was chronicled in the new biopic, Black Mass, in which he was portrayed by Johnny Depp. Bulger’s defense attorney, Hank Brennan, told PEOPLE that Bulger was angry with the movie.

Greig, a former dental hygienist and dog groomer who spent 16 years on the run with Bulger, is already serving eight years in federal prison in Waseca, Minnesota after pleading guilty in 2012 to charges of identity fraud and harboring a fugitive.

Greig and Bulger were arrested in 2011 in the garage of their rent-stabilized apartment in Santa Monica, California, where they were living under the names Carol and Charlie Gasko.

Contempt charges were filed against Greig because she allegedly wouldn’t testify before a grand jury about possible accomplices who would have helped them during their time on the lamb.

Bulger, who is 86, was convicted in 2013 of killing or ordering the murders of 11 people while leading Boston’s Winter Hill Gang during the 1970s and 1980s.

Want to keep up with the latest crime coverage? Click here to get breaking crime news, ongoing trial coverage and details of intriguing unsolved cases in the True Crime Newsletter.