Robert Durst was interviewed by prosecutors for three hours following his arrest in New Orleans without his lawyer present, according to a new report.

Durst’s attorney Dick DeGuerin said he doesn’t know what was said during the interview but believes the 71-year-old, who’s charged in the cold-case murder of his longtime friend Susan Berman, didn’t say anything incriminating.

DeGuerin told CBS’s “48 Hours” in a segment that will air Saturday night that evidence in the Los Angeles murder case is “a lot more troublesome for the prosecution.”

“Not only is it a circumstantial evidence case, it’s a weak circumstantial evidence case,” he claimed.

DeGuerin represented Durst in 2003 when he was acquitted of murdering his neighbor Morris Black in Galveston, Texas.

The creepy millionaire was arrested last week at his hotel in the Big Easy on a Los Angeles warrant for the execution-style murder of Berman in 2000.

He is also charged with two counts of gun possession in New Orleans and is being held without bail at Elayn Hunt Correctional Center an hour outside the city.