Legal Question in Criminal Law in California

It sounds like he's trying to rope you into a massive scam. I would be willing to bet the laptop was bought with a stolen credit card and the third party had no idea their credit card was used.

Take the laptop to your local police station, explain that it was sent to your address without your consent, and tell the guy that he can pick it up from them.

Please understand that this is a general discussion of legal principles by a California lawyer and does not create an attorney/client relationship. It's impossible to give detailed, accurate advice based on a few sentences on a website (and you shouldn't provide too much specific information about your legal matter on a public forum like this site, anyway). You should always seek advice from an attorney licensed in your jurisdiction who can give you an informed opinion after reviewing all of the relevant information.

No. Don't believe such outrageous scams, and certainly do not give anyone personal or financial info. Contact your local police if anyone tries to 'threaten' you.