I'm wondering if there's something else involved. I had a look at the young man's FB page and it seems the little guy has been in hospital having treatment for over a month and he was diagnosed with stage 4 cancer. His last post was late Wednesday evening. It does seem a crazy thing to do but they seem like a well adjusted family. There's got to be more to this story than appears on the surface.
Nicolau, I hope you manage to get in touch with them somehow.