‘Extremist’ ebooks on Imam’s computer basis for terrorism claim

– ORLANDO SENTINEL, JUNE 3 2015, FEAT. PROF. WADIE SAID:

The United States is an oppressor. Al-Qaeda had nothing to do with the Sept. 11 attacks. Fighting non-believers is mandatory.

These statements are found among 10,000 ebooks the FBI collected from the computer of a Central Florida Imam on Aug. 23, 2011. Though extreme in nature, should they be used as evidence that Marcus Robertson promoted terrorism?