Via Vox a short article 'The CIA finally declassified its report on Saudi links to 9/11. Here's what it says.':
The report claims no conclusive answer, but states it found no evidence that "the Saudi government knowingly and willingly supported the al-Qaeda terrorists." However, its sources speculated that rogue Saudi officials may have been involved — a long-running suspicion.
Link:https://www.vox.com/2015/6/13/877556...d-saudi-arabia