It's been two years since the murder of Washington Post columnist Jamal Khashoggi by Saudi agents at the Kingdom's Istanbul consulate. At the end of his life, Khashoggi was among Crown Prince Mohammad bin Salman's highest-profile critics. The new Showtime film "Kingdom of Silence" charts Khashoggi's personal evolution, as his allies relaunch his pro-democracy organization. Nick Schifrin reports. PBS NewsHour is supported by - https://www.pbs.org/newshour/about/funders