Did subject of HBO documentary really 'kill them all'?

Show Caption Hide Caption Robert Durst of HBO series arrested on murder charge Real estate heir Robert Durst was arrested in New Orleans on a first-degree murder warrant. On Sunday night, the final episode of a six-part HBO documentary featuring him aired.

Eccentric real-estate heir Robert Durst faced an extradition hearing on a murder charge Monday, hours after an HBO documentary was aired in which he mumbled "What did I do? Kill them all, of course."

Durst, 71, is a member of a prominent New York City family that owns a multibillion-dollar real-estate company. FBI agents took him into custody in a hotel lobby Saturday night in New Orleans, where he was being held on a first-degree murder warrant.

Durst was the focal point of the six-part HBO documentary The Jinx: The Life and Deaths of Robert Durst. Durst has been linked to at least three murders, and in the final episode that aired Sunday evening, wore his microphone into the bathroom and was recorded talking to himself.

What followed was a bizarre rambling in which Durst said, apparently to himself, "There it is. You're caught," and "What the hell did I do? Killed them all of course."

It wasn't known whether producers confronted Durst about those recorded words, or what Durst meant by them.

The Los Angeles Police Department said in a statement Sunday that it has been investigating the slaying of writer and Durst confidant Susan Berman since her body was discovered in her West Los Angeles home on Christmas Eve 2000.

Durst discussed the case in the HBO documentary series.

"As a result of investigative leads and additional evidence that has come to light in the past year, investigators have identified Robert Durst as the person responsible for Ms. Berman's death,'' the Los Angeles Police statement said. "Investigator's in concert with the Los Angeles County District Attorney's Major Crimes Section secured an Arrest warrant for Robert Durst for the murder of Susan Berman and arrested Mr. Durst on Saturday, March 14, 2015, in New Orleans, Louisiana.''

Los Angeles authorities said they were seeking Durst's extradition from Louisiana. Durst's lawyer, Chip Lewis, told KTRK-TV in Houston that Durst, a suspect in a series of unsolved crimes, will not fight extradition but will fight the charges.

Durst is being held without bond pending a hearing Monday.

His brother Douglas, expressed "relief" and gratitude in a written statement.

"We hope he will finally be held accountable for all he has done," Douglas Durst said.

In 1982, Durst was the only named suspect in the disappearance of his first wife, medical student Kathleen McCormack, who vanished after Durst maintained he dropped her off at a train station near their home north of New York City in Westchester County.

On Chistmas Eve 2000, after investigators looking into the McCormack disappearance contacted Berman, she was found murdered with a gunshot wound to the back of her head. Durst was never charged.

Last week's HBO episode hinted that Los Angeles detectives were closing in on Durst, showing an apparent match between a Dec. 23, 2000, anonymous letter alerting police to a body at Berman's address and the handwriting on a letter Durst sent Berman the previous year. Both letters misspelled Beverly Hills as "Beverley."

New York state police Investigator Joseph Becerra was the first to take a fresh look at McCormack's disappearance in 2000 and has worked closely with Los Angeles detectives and FBI agents in recent months.

"We're going to monitor the Los Angeles case closely, and hopefully it will lead to some resolution of our case," Becerra said Sunday.

Months after Berman's death, Durst was arrested in the death of a Texas neighbor, Morris Black. Durst admitted cutting up Black's body and dumping the remains in Galveston Bay. Aided by a trio of famed Houston defense lawyers, Durst won an acquittal based on self-defense.

Durst's family's business, the Durst Organization, owns more than 15 skyscrapers, including the Bank of America Tower in the heart of Manhattan, and has a large investment in One World Trade Center, the tallest building in the U.S. and the replacement for the Twin Towers. Douglas Durst serves as president; Robert Durst is not involved in the family business.

In July, Durst had a more quirky run-in with the law. He was accused of urinating on a Texas CVS cash register and candy rack. Lewis at that time said Durst suffers from a form of Asperger's Syndrome, a form of autism.

"He wasn't arguing with anybody and he didn't seem agitated," Houston police spokeswoman Jodi Silva told The New York Post. "He just peed on the candy. Skittles, I think."

Attorney Ellen Strauss, a friend of Durst's first wife Kathleen from their days as students at Western Connecticut State University, said she was relieved by the arrest. "I feel extremely vindicated after 33 years,'' she said.

"It's not going to bring Kathie back," Strauss added. "He may never be arrested for that case. But he will remain behind bars, where he belongs. It's finally come full circle."

Contributing: William M. Welch in Los Angeles