There is the possibility that the guy originally intended to steal the bag, but after doing it had a change of heart and decided to give it back. Maybe he was desperate, used the money for a meal, and decided that it was wrong and returned the rest.

But with that said, I'd cancel the cards just to be safe and change any passwords that could have been hacked from the phone.

The key here is that he could have easily gotten a lot of information from his phone, cards, ect. A smart theif would know that usually if someones credit/debit cards get stolen then that person will report them as missing and get new cards issued with new account numbers.

My guess is this guy got all the information he could off of all those things and then just returned them acting like someone who "found" the bag. If he was similar to the person on tape then My guess its the same person as you said.

Its also possible that this guy, if he is experienced with doing this, got all the information he needed about your brother. That is likely why he knew he worked at ncr. Is it possible your brother had the phone number to ncr labeled as "work" or "employer"? He could have easily found out a lot just by looking at call history, text messages, emails, ect.

Make sure your brother acts quickly in reporting his cards as stolen, changing bank account numbers, ect. He also needs to monitor a lot for a while. bank account, bills, mail to see if anything suspicious shows up that could hint his identity was stolen. It also wouldn't be a bad idea for him to sign up for something like, Lifelock. Or something that protects and monitors transactions using his name. Lifelock is one of the best ones I have seen.

But the most important thing he can do right away is changing all his account numbers. And did he have his license in his wallet? I know some states can include SS# on it.

Were his keys in the bag? Cause not only has he made copies, he also knows the address...

I think Andreapetmonkey is British, and I don't think British driving licenses have the equivalent on them.

True that. I didn't even think to check location. Thanks.

Guy has the address, cc numbers, phone numbers, can probably look up the names of the residence, family members,. Very likely capable of stealing his identity.

He may have been an engineer himself, recognized the tools and asked if he worked for NCR. Who knows maybe NCR is common?

For the second question, money is easiest. In fact, had I had my backpack returned with my laptop, ds, textbooks etc etc, I'd be happy to have given the thief 100 or even 200$. As it is, most thieves will go through a bag, take the money, and throw everything else into a dumpster, so be glad it's only ten.
Change the locks if keys were in the bag, change the card numbers, etc.

Also, who knows, maybe he was looking to get some kind of referral. Like, Hey I met this guy today who found my bag, he was an engineer too. I dunno, people have crazy ideas when times are tough.

Lastly, yes it's possible that someone else stole it, and that guy found it and they happen to look alike.

Whatever the case may be, be glad you got everything back except for a tenner.

I don't know why he insisted on sending you out to get the bag though. That's kind of weird.

There is obviously something fishy going on.

You will obviously want to do everything people have said so far. But make sure to keep a really close watch on your account and your house. Some one should be home at all times from now on.

If you see his car again or see him again make sure to call the Police because he would most likely be watching your house.

He now has your address, which is used for purchasing online. He also scoped out your house to see if there is of any value he could steal, and most importantly, if you are any unintentionally omitting any important info and we know little about your backstory, the fact that he knows where your brothers works suggest he's familiar with your brothers. He's a stalker (motives unknown, which could mean from petty little theft, to personal grudges, to murderer, etc).

I've already told my bro to change his cards, I'm sure he would of done without me saying anyway :)

@bolded definitely