Robert Durst never admitted to killing first wife Kathleen Durst 34 years ago, and no conclusive evidence has been found—but her death could still cost him his fortune. Kathleen's three sisters and 101-year-old mother have filed a $100 million lawsuit against Durst contending he infringed upon their "right to sepulcher," a New York law protecting the right to a family member's body for the funeral, the New York Times reports. "The family’s priority has been and continues to be to provide Kathleen with a proper and dignified burial," says the family's lawyer. The lawsuit makes clear that Durst, who was featured in the HBO documentary The Jinx, "murdered Kathleen." And in that film Durst is caught mumbling into his mic, "What the hell did I do? Killed them all, of course.