I haven't found any indication that he said anything against the Saudi regime. I brought it up because he appears to have been executed according to a professional (if bungled) plan reminiscent of the murder of Jamal Khashoggi by the Saudi state. I think it merits contemplation any time anyone with Saudi connections is professionally murdered and dismembered.
Sure but Khashoggi was a very high profile Journalist and Activist and that happened on Turkish soil. An assassination like that in the US would be a dramatic change in their behavior and politically very hazardous.