Task: Question Answering
Input (English): Passage: In an undercover mission, Major Sloane kills Professor Ragheeb, an ancient hieroglyphics expert at Oxford University and steals a hieroglyph-encrypted message. Sloane then asks Professor David Pollock, who has taken over Ragheeb's class on Hieroglyphics, to meet with shipping magnate Nejim Beshraavi on a business matter. David declines but changes his mind after being forced to enter a Rolls-Royce Phantom IV, where he meets Middle Eastern Prime Minister Hassan Jena and his Ambassador to Great Britain, Mohammed Lufti. Jena asks David to accept Beshraavi's offer of employment.
David meets Beshraavi, who asks him to decode the inscription on the piece of paper Sloane stole. David is attracted to Beshraavi's girlfriend Yasmin Azir, who tells him that Beshraavi had Ragheeb killed and will do the same to him once he decodes the message. Their conversation is interrupted by Beshraavi. David keeps hidden until Sloane brings it to Beshraavi's attention that David and the cipher are missing. Overhearing the conversation, David wraps the cipher in a candy in his pocket, among others, a red one with the number "9". As Beshraavi's men search for David, Beshraavi demonstrates to one of Yasmin's employees, Hemsley, that he can buy people for their loyalty or else exact extreme revenge.  Forced to show himself, David seemingly abducts Yasmin. They flee from one of Beshraavi's henchmen, Mustapha. In the course of the chase, Mustapha and David struggle at the zoological gardens, when another man intervenes and kills Mustapha. He identifies himself as Inspector Webster with CID. When a guard approaches, Webster kills him before revealing that he is working with Yasmin. Webster knocks David unconscious. 
Question: Who kills Mustapha?
Output (English): Inspector Webster.