Robert Durst, the heir to a billion-dollar real estate empire who was sentenced to life in prison after admitting to murder in the HBO miniseries The Jinx, has died at the age of 78. As TMZ reports, the cause was cardiac arrest, though he had also been battling bladder cancer, and was weakened after a bout with COVID-19 put him on a ventilator last year. The Jinx: The Life and Deaths of Robert Durst aired in 2015 and examined the possibility that Durst was a serial killer. Incredibly, the series was Durst’s idea, having reached out to director Andrew Jarecki to volunteer himself for an interview. At the time, he was suspected in the deaths of three people: his wife Kathleen McCormack Durst, who disappeared in 1982; the 2000 murder of his friend Susan Berman; and the 200...