I think the case started back in 2008 in Denver.
Since he's a Saudi national and Hillary was US Sec of State in those years she was likely very aware of the case and the Denver area Democrats in the period 2009-2013.
Turki was from one of the wealthiest families in Saudi Arabia and apparently Anwar al Awlaki / Aulaqi tapes were sold out of his Denver mosque...
Money and foreign policy issues- this had to be right up Hillary’s alley.