There are, in fact, more than you know.
EXCLUSIVE: Chicago ISIS Supporter Active On Facebook, MEMRI, September 3, 2016:
An ISIS supporter active on Facebook. He previously was active on Twitter, however, it appears he favors Facebook since his Twitter account is currently dormant. He circulates official ISIS propaganda under the guise of “educational purposes.”
EXCLUSIVE: ISIS Sympathizer In Washington DC, MEMRI, September 3, 2016:
An Oregon man on Facebook is vocal in his support for the Islamic State (ISIS) on his Facebook page. He is fairly forthcoming regarding personal details, revealing, for instance, that he was institutionalized and placed in a mental asylum, but it is unclear how long he stayed there since some of the details in varying posts are conflicting.
Courtesy of Pamela Geller