A lawyer for James "Whitey" Bulger has identified the federal official who he says gave the Boston mobster immunity to commit crimes while he was an FBI informant.
In court papers filed late Wednesday, attorney J.W. Carney says former U.S. Attorney for Massachusetts Jeremiah O'Sullivan granted Bulger immunity for past or future crimes.
The revelation was made in a defense motion for Judge Richard Stearns to recuse himself from the case.
Bulger's lawyers say Stearns has a conflict of interest because he worked in the U.S. attorney's office in Boston at the same time as O'Sullivan, who died in 2009.
Prosecutors have said Bulger never received immunity from anyone.
The 83-year-old Bulger is accused of participating in 19 murders. He fled Boston in 1994 and remained one of the FBI's most wanted fugitives until his capture in California last year.
This article was originally published on October 25, 2012.
This program aired on October 25, 2012. The audio for this program is not available.