Catherine Greig refused to identify people who helped Bulger when the pair were fugitives for 16 years
Credit: U.S. Marshals Service/AP

The longtime female companion of Boston mob boss James “Whitey” Bulger, who spent 16 years on the run with him when he was a fugitive, has been indicted for criminal contempt for refusing testify to a grand jury about whether other people helped the couple hide.

Catherine Greig, 64, a former dental hygienist and dog groomer who fled Boston with Bulger in 1995, was arrested with the gangster in 2011 in the garage of their rent-stabilized apartment in Santa Monica, where they lived under the names Carol and Charlie Gasko. Greig is serving an eight-year-sentence at a minimum security prison in Minnesota after being convicted of identity fraud and harboring a fugitive.

“Catherine Greig has yet again failed to do the right thing,” said the FBI’s Joseph R. Bonavolonta in a statement released by the U.S. Department of Justice. “Her refusal to testify has hindered the FBI’s efforts to seek justice for the victims of [Bulger’s] crimes. Our efforts to find those who assisted them during their lives as fugitives will not stop despite the fact that Ms. Greig has refused to testify.”

If convicted, Greig could face additional prison time subsequent to her current eight year term, according to the statement. It is not yet known whether she has entered a plea.

In 2013, Bulger, now 86, was found guilty of 11 murders, federal racketeering, extortion, and conspiracy. He is currently serving a sentence of two consecutive life sentences plus five years in prison in Florida.

Greig’s attorney, Kevin Reddington, told PEOPLE: “It’s clear that the government is targeting my client in a vindictive and harassing way,” Reddington told PEOPLE. “Why everyone else is going to the movies, my client is going to jail for a longer period of time.”

Redding was referring to the movie Black Mass, about Bulger’s life, in which Johnny Depp plays Bulger. Bulger’s defense attorney, Hank Brennan, told PEOPLE that Bulger was upset about the movie, saying, “Johnny Depp might as well have been playing the Mad Hatter all over again as far as James Bulger is concerned.”

Brennan said that the movie didn’t focus sufficiently on Bulger’s longstanding relationship with the FBI as an informant: “Hollywood greed is behind the rush to portray my client, and the movie missed the real scourge created in my client’s case, the real menace to Boston during that time and in other mob cases around the country the federal government’s complicity in each and every one of those murders with the top echelon informant program.”

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.