LOS ANGELES—New York real estate heir Robert Durst, who was sentenced to life in prison without parole for killing a friend in her Benedict Canyon home, died Jan. 10 in prison. According to Chip Lewis, one of his attorneys, the 78-year-old Durst died of “natural causes associated with the litany of medical issues we had repeatedly reported to the court over the last couple of years.” Lewis said attorneys would have no further statements about Durst’s death. Durst was convicted Sept. 17 of first-degree murder for shooting Susan Berman in her home in December 2000. Prosecutors said Durst killed Berman to prevent her from incriminating him in a renewed police investigation into the disappearance of his first wife, Kathie Durst, in 1982. Durst was the grandson of Joseph Durst, founder of the Durst Organization, one of Manhattan’s largest commercial real estate firms. Prosecutors estimate that Robert Durst’s share of the …