Saudi’s Crown Prince Mohammed bin Salman has come under intense scrutiny since the killing of journalist Jamal Khashoggi, with many believing he may have been behind it. Mohammed bin Salman has condemned the act. But a secret source has told the BBC that they believe Khashoggi’s killing wasn’t the first to be carried out by people close to the Crown Prince. With BBC Arabic we investigate these allegations and ask if Mohammed bin Salman can survive the furore over Jamal Khashoggi’s killing.