Robert Durst, the estranged heir to a New York real estate fortune, killed her and her death became the basis for his “playbook” on getting away with two other killings."He tried to figure out, ‘How do I get away with murder?’" Deputy District Attorney Habib Balian said. “What’s my go-to move?”Durst, 78, is charged with murder in the point-blank shooting of his best friend, Susan Berman, at her Los Angeles home in December 2000.