In reality, from money laundering law enforcement point of view, C is usually the one to blame, because the dirty money ends up at C's address

So, either C return the bitcoin to the victim, or he enter the blacklist of police watch list, that's how it happens in reality. Law enforcement have no way to know any concrete information about A B D and E, in fact they can all be some lines of codes


A similar questionnaire:

Person A issued government bonds of 10 billion dollar and give them to person B
Person B bring those bonds to person C and Person C create 10 billion dollar and purchase those bonds from Person B
Person B then take those 10 billion dollar and give them to Person A
Person A then spend those 10 billion dollar and hand out salary to person D
Person D then pay 30% of those salary to person A, and person A use those money to pay bonds interest to person C
Person B is the stock holder of Person C

Who is the theif