Despite his apparent naivete, he clearly knew what he was joining. Has his mosque been investigated? Have those who converted him to Islam been questioned? Why not?

“Texan who tried to teach English to ISIS in Mosul has been indicted,” by Chad Garland, Stars and Stripes, January 26, 2019:

A Texas man captured in Syria has been indicted on charges that he attempted to provide himself as material support to the Islamic State group, the Justice Department said Friday.

Warren C. Clark, 34, a convert to Islam and former substitute teacher from Sugar Land, Texas, previously admitted to seeking a position teaching English at a university in the Iraqi city of Mosul, which ISIS has occupied for more than three years.

The Texas native was among a group of foreign fighters captured on the battlefield in Syria by U.S.-backed Kurdish forces during a Jan. 5 raid. This week, he was transferred to U.S. law enforcement custody and brought to Houston, where he appeared in federal court, the Justice Department said Friday in a statement. He was indicted by a grand jury and will face a detention hearing next week, the statement said….

If convicted, Clark faces up to 20 years in federal prison and a maximum fine of $250,000.

Since 2011, 14 American adults and seven minors have returned to the U.S. after traveling to Iraq or Syria to join extremist groups…

Clark crossed into Syria from Turkey in June 2015, aware of the group’s reputation for beheadings, he told NBC News earlier this month. He said he wanted to “see what the group was about.” He was drawn to ISIS out of curiosity over its ideology, he said.

Clark claimed he never fought for the group and was detained nearly a dozen times after he refused to take up arms. Each time, he said, he was let go and was not abused. He admitted that he had sought work as a teacher.

“I was living in Mosul at the time and I needed a way to support myself,” he said.

The FBI has said about 300 Americans have left or tried to leave the U.S. to join ISIS….