'Whitey' Bulger's lawyer claims US atty gave mobster immunity to break law while he was an FBI informant

The New York Post reports:

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 US Attorney for Massachusetts Jeremiah O'Sullivan granted Bulger immunity for past or future crimes.

No word yet on this story from Chicago's Jesse Jackson Jr. or Alderman Ed Burke.