Whitey Bulger Arrest: More Details Released About Martin Scorsese's 'Departed' Inspiration

James “Whitey” Bulger, Jack Nicholson - SPLIT

The mobster claims he snuck into Boston "armed to the teeth" to "take care of unfinished business" while on the run for the past 15 years.

Federal authorities have released more details about the crimes charges against Boston mob boss Whitey Bulger, who was an inspiration for Martin Scorsese’s Oscar-winning 2006 film The Departed.

Bulger was arrested Wednesday after a hunt for the mobster, who had been wanted for his alleged role numerous crimes, including 19 murders.

After his arrested, Bulger told feds that he had dressed in disguise and snuck into Boston “armed to the teeth” to visit confidents which he was a fugitive. His goal was to “take care of unfinished business,” according to a government court document cited by ABC News. He did not specify with whom he met. (The document makes a case that Bulger’s defense shouldn’t be paid by taxpayers.)

Bulger revealed those details to authorities while traveling from California to Boston via airplane. He was captured with girlfriend Catherine Greig last week at a Santa Monica apartment where he has spent the past 15 years on the run; Bulger, 81, topped the FBI’s most wanted list.

According to the government document, Bulger also visited Las Vegas several times while on the run, claiming “he won more than he lost.” The FBI found $822,198 inside the Santa Monica apartment, “much of it in packages containing $100 bills that were bundled together and hidden inside a wall in the apartment,” the document states.

Federal prosecutors plan to argue that Bulger has hidden money with friends and family members as well.

They also are going to petition a judge to require affidavits from Bulger's brothers, William Bulger, former speaker of the House in Massachusetts, and John Bulger, about their holdings.

"Bulger may have additional assets and or allies willing to assist him in his current predicament,'' the government’s document reads.

Scorsese’s Departed won four Oscars at the 2007 ceremony, including best picture. It stars Leonardo DiCaprio, Matt Damon, Jack Nicholson and Mark Wahlberg.