How to disprove free will using basic logic

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Kantor said:
No.

In the first scenario, it is perfectly possible that he's already decided to rob a bank. There's no reason why rewinding time should automatically change your mind so that your actions are random.

Which makes his actions determined by the past. They are not free.

The second scenario wouldn't really happen, but if it did, it would be because quantum theory made some significant change which caused him to freely change his mind.

 If his mind was changed because of randomness then it isn't free. It is random.