Paris ? A suspected pedophile being hunted by Interpol contributed to an online forum for teachers, and police say they believe he wrote under a pseudonym about the risks of catching HIV from oral sex and how to erase pornographic computer files “so no one will see.”

Two teachers who knew and socialized with Christopher Paul Neil, a 32-year-old Canadian now being sought for allegedly abusing young boys, told The Associated Press he wrote extensively online under the pseudonym “Peter Jackson.” They described him as a social, fun-loving person and said no one in their circles suspected him of pedophilia.

The worldwide manhunt for Neil, who eluded police for years, is now centered on Thailand. Authorities say Neil flew into Bangkok on a one-way ticket Thursday and is still at large.