A former close friend of Robert Durst says the millionaire heir admitted killing their mutual best friend.
Nathan Chavin testified Thursday in Los Angeles that Durst told him in 2014 that he killed Susan Berman.
Chavin says Durst said he had to. He said: "It was her or me, I had no choice."
Chavin, who became emotional while testifying, says he still has warm feelings for Durst.
Durst has pleaded not guilty to murder in the death of Berman, who was killed in 2000 in Los Angeles.
Chavin said the conversation came at the end of a dinner Durst arranged to discuss Berman and the disappearance of his first wife.
Chavin said Durst left without discussing what happened to Kathleen Durst.