also casting doubt on whether this audiotape exists that suggests this "washington post" journalist was tortured and killed shortly after entering the saudi consulate. president trump today not giving details about the investigation surrounding the disappearance of "washington post" journalist, jamal khashoggi, playing coy with reporters in the oval office when pressed if he's asked for the fbi's involvement. >> why not send the fbi in to figure this out? >> he wasn't a citizen of this country for one thing. and we're going to determine that. and you don't know whether or not we have, do you? do you know whether or not we have sent the fbi? >> have you sent the fbi? >> i'm not going to tell you. >> tell us! >> why would i tell you? >> reporter: trump indicating, the u.s. asked the turkish authorities to hand over audio recordings they claim proves khashoggi was core toured, tort dismembered. >> we have asked if it exists. >> reporter: the president once