Talk to a local tax lawyer or enrolled agent offline who can review the specifics and advise you of your next steps. Best of luck
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Possibly. You should contact the taxing jurisdiction to see what they advise.
The above statements are provided as general information and not intended as legal advice. Each matter has its own set of unique circumstances that cannot be adequately addressed without consultation. You are strongly advised to hire an attorney licensed to practice law in your state to represent you.
If someone truly did steal "your" tax ID, then in addition to suing them (which may not get you anything other than their stopping the use of the number) you should contact the IRS to inform them of this theft.
This is not intended to be legal advice, and is general in nature.