First of all, kudos for actually writing this scam accusation in the correct format. It's really frustrating when things aren't layed out as expected.

The person in question is i would say almost certainly a scammer. The fact that he sent you the account deliberately without the correct password basically meant that he didn't have any plan on getting you the product in the first place. And also, people who like to chat outside of bitcointalk are also usually scammers as they want to do things quick, without waiting in between PMs.

Another guy was scammed as well. It could be a coincidence, he's just away for some emergency but imo that's not the case here. Take this as a lesson to use escrow no matter what.