American ISIS member Warren Clark says he wanted to see ‘what the group was about’ 'I’m from the United States, from Texas. They like to execute people, too. So I really don’t see any difference,' he said in an exclusive interview.

(NBC) A Texan who says he offered to work as an English teacher for the Islamic State and was captured earlier this month in Syria by U.S.-backed forces said he witnessed executions and crucifixions during the more than three years he spent with the terrorist group.

But 34-year-old Warren Christopher Clark, who is being held in Kurdish custody, told NBC News in an exclusive interview that he does not regret throwing in his lot with ISIS. No Kurdish security were present during the interview.

“I wanted to go see exactly what the group was about, and what they were doing,” he said. “Of course I saw the videos. I think with the beheadings, that’s execution. I’m from the United States, from Texas. They like to execute people, too. So I really don’t see any difference. They might do it off camera, but it’s the same.”

(Text updated)

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