Here's how this might work if it is a scam.

1) Yes you will receive a wire transfer first, most likely from a little old lady in Idaho.
2) You then send the BTC free and clear to the OP.
3) You will then be arrested for committing a FELONY for stealing the little old lady's money.
4) You will lose the money and the BTC and have a lot of explaining to do.   
5) Next you will get a tax bill from the IRS and more explaining.