It's good this is seen as big news, but to anyone paying attention this is an everyday occurrence.
All you need to charge someone is to show by a preponderance of the evidence that the elements of the offense were committed. Account being in your name and used in the crime meets that criteria. The problem is that many times a "thorough investigation" was not performed. There's nothing in law requiring a thorough investigation, but it's usually included in department regulations. You can file a complaint, but they won't do anything about it. There is no accountability anywhere in the system. The judges who are supposed to be neutral are severely biased due to the structure of the system and lack of training.