Robert Durst could have had it all. Heir to a billion-dollar Manhattan real-estate fortune, he is now awaiting trial for a brutal murder in Texas. Durst has confessed to killing his elderly neighbour whose headless and mutilated torso was found floating in Galveston Bay.

Durst may also hold the key to one of America's longest lasting mysteries. Twenty years ago, Durst's beautiful wife Kathy vanished just weeks before graduating from medical school. The day she disappeared, she warned that if anything happened to her, "It will be Bobby". She hasn't been seen since. Kathy's friends and family believe she was murdered and that Durst was responsible.

In a special report with the New York Times, The Point re-examines the police investigation into Kathy's mysterious disappearance and traces Robert Durst's journey from the high-life of New York to a prison cell in Texas.