Amy McGuire-Emily- Andrew Norton Fraud on craigslist with apple latop Manchester Internet

Two weeks ago, I got ripped off 650$. I found an ad on craigslist offering a macbook Pro for 650$. It was supposed to be local, here in Washington DC.
As I asked questions about the warranty and so on, I received the answer that "Amy" now lives in Manchester, UK. She offered to ship the laptop with DHL and send me a link to read. It all seemed very authentic and like the real DHL homepage.I was sent an email saying they have the laptop in custody and I would have to transfer money using western union to the DHL agent Andrew Norton. I did that, not knowing that I would not be able to get the money back once they picked it up. It is common in germany to use DHl and it look really like to official homepage. I never received the laptop or heard from them again, but the money was picked up right the day after I had send it. I google and found out that he/she/they use various fake names and always the same system. The most used companies are: DHL, Royalmail and TNT. Apparently they also do that with tickets, PS3 and other brand laptops.
They also use different fake names. The email are always send from a hotmail.com account. Often says the email "a safe way for both of us to receive what we're after". I filed a report at western union, but I am not sure if it will help since they use so many different fake names. Do not send money with western union. Try to stay local and pick up what you're paying for.
He/she/they used the followering emailads when they were in contact with me (Ifound new ads on craigslist and tested them in order to see if they use the same system and emailad):
amy.s.dreams@hotmail.com
emilypecot77@hotmail.com
amythedreamer79@hotmail.com

Evelyn
Washington, District of Columbia
U.S.A.