NBC has a bit more information regarding this case:
"The police could not find him still on Friday so they asked if my daughter can lure him out for a meeting and we did that together with police presence while she texted him. And that’s how he was arrested on Saturday," the mother said."
"The police told the family that Rockwell had photographed and filmed the couple's weekly sexual encounters without the girl's knowledge, she said. Police have not confirmed this to NBC News."
and they end with this tidbit
"Thailand has a longstanding history of sexual abuse of minors committed by foreign workers and tourists. In 2008, Canadian teacher Christopher Paul Neil, who taught in several Asian countries, was convicted after hundreds of photos were found of him allegedly engaging in sex acts with young boys.
In 2009, Wayne Nelson Corliss, also Canadian, was sentenced to almost 20 years in jail for his part in an international sex tourism ring that preyed on young boys in Thailand."
Fox News states:
"Royal Thai Police Lieutenant General Thitsit Sangsawan told the Daily Mail that Rockwell was charged with unlawful sex with a minor and recording the sexual acts."
Sure does not bode well for teacher Puke