I need help trying to find out who was trying to scam me? I only have an email address that he used..?

I met this so called individual online. He said he found me on facebook. I have been searching online on ways to find out where this email was actually coming from and everywhere I turn I have to pay just to find out and turn this person in and perhaps stop him from cosing real harm by scamming someone else. Thank you.. Bobbi