Nobody wants to hear it, but I don't think it's right to call it naivete. The source article says that local media were able to reach a lawyer representing the

Nobody wants to hear it, but I don't think it's right to call it naivete. The source article says that local media were able to reach a lawyer representing the family, who did say they're not sure what the investigation is about but didn't say anything like "my clients are missing and I don't know where they've been taken". If the FBI hasn't filed formal charges yet, and the targets of the investigation aren't interested in talking to the public or the media, the only options are to wait for more information or engage in wild speculation.