Forward the e-mail to your ISP provider and let them know this individual is using the internet to commit a crime. Also, place fraud alerts with all three credit bureaus and notify your bank and employer that you are being targeted by extortion scammers.
I just got this same email from Attorney John Carter saying I owe for a payday loan I took out in 07/2013. I never had any payday loans of 2013. The bank accouny number I have never had lol. Only thing I am worried about is that my social security number is listed and it is right. how did they get this and how do I protect myself on this one.