Their conversations with the confidential source revealed details of their "travel logistics, including flights, passports and visas." Kabir was to meet up with the three others and lead them to the Taliban, the court document said.

Santana and Deleon allegedly pre-trained on a firing range and at a paintball center and took the confidential source along with them.

Deleon told the confidential source he would quit school and withdraw his tuition money to help pay for the trip to Afghanistan, the criminal complaint said.

Santana told the confidential source said he would like to drive a truck bomb, if he could do it with a big truck. "Just drive it into like the baddest military base," he said, according to the document. "If I'm gonna do, I'm gonna do that. I'm gonna take out a whole base."