Kimmyt, so sorry to hear about your brother's bike being stolen.

What bike shop did he go to? I can recommend some good shops. Does he still have the Peugeot? That's crap about the chain--you can find one if you know where to look and who to call. Peugeot may have had a French chain, but they can be found.

I would suggest that he buy a used bike. Labor and repair and maintenance are no more expensive than a new bike. Parts can be found, and older parts are often cheaper than newer, especially if you can get them used. Plus, many bike shops recondition used bikes before they sell them. There are a couple of bike coops in and around DC. The great thing about bikes is that their basic design has hardly changed. Also, bikes are pretty basic to work on. It would be a good idea for him to learn the basics of bike maintenance (prevention of parts breaking) and repair.

Also, he should bring his bike inside his apartment for sure. Office is harder, but perhaps there's a parking garage with a bike cage in it nearby if his office won't allow a bike inside (but he should ask about it). Many parking garages in DC have such cages. In any case, he needs a good lock. Don't skimp on the lock.

I lived in DC for many years and bought my commuter bike brand new and never had any problems. Of course, I kept it in my house and in my office and not outside.

Spray paint is not a bad idea.