Warren Scott Kennell was arrested at Orlando International Airport after a flight from Brazil.
According to documents from federal investigators, agents started looking into Kennell because of a tip involving online child pornography sharing.
Two pornographic images were found on Kennell’s computer. He admitted to detectives that he was the one depicted in the photos abusing girls.
Kennell admitted he molested four children while in Brazil, according to agents.
A New Tribe's spokeswoman said a note was distributed internally about Kennell's arrest. The communication said in part, "We are heartsick that children have been victimized. While we are trying to confirm whether there is a connection between the accused's personal actions and our organization, we have put the accused on immediate leave."
Kennell was booked into the Seminole County Jail. His arrest is not the first of someone involved with New Tribes. In 2006, a part-time instructor, George Goolde, was charged with molesting two boys.