This is a scam. Consumer lawyes see lots of these. Do not respond. File complaints with the Federal Trade Commission, Consumer Financial Protection Bureau, and Attorney General of your state. None of the dire threats can or will be carried out.
If you have responded by providing any financial or account information, notify the financial institutions that your account has been compromised and cancel it/ change the number. Otherwise, you will find it drained.
This is a scam. Just for your future reference. When you get an email like this and are unsure about it, you are always welcome to come here and ask about it. I've found, personally, that googling the subject line of suspect emails typically reveals others who have reported getting hit up with the exact same scam. Ripoffreport.com is another good source.