I gather there are inconsistencies between his confession and the known facts of the killing - for instance, I read that the confession says he seized her on her way home from school, when in fact she did not attend school on the day of the killing because it was Christmas Eve. That seems odd if he really has researched the case. I wonder whether in fact the Thai authorities have some reason for wanting to extradite him rather than deal with him themselves, and have written the confession for him?