My hut feeling is that he’s trying to craft a narrative where he is not exposed as deliberately faking this, in order to save himself. From his silenence toward

My hut feeling is that he’s trying to craft a narrative where he is not exposed as deliberately faking this, in order to save himself. From his silenence towards those trying to figure our what happened, it feels like he might have intended the fakes but not thought he would be caught. This also nicely explains the many original questions of why he would not preocecute the thieves. It was because he knew they where not actual thieves.