Her body was never found. At the request of her family, she was declared legally dead in 2017. ... Los Angeles prosecutors said Robert Durst killed Berman because she was preparing to confess to police how she helped him cover up Kathie Durst's death.

Was Katie Mark found?

She has never been found and was declared dead in 2017. ... Her father had been a mobster in Las Vegas and investigators theorized that her death could be connected to either her family's past... or her friend, Robert Durst.

How was Durst caught?

The trial came six years after Durst's apparent confession was aired in the HBO television documentary series The Jinx, in which Durst was caught on a hot microphone in the toilet saying to himself, “What the hell did I do? … Killed them all, of course.”