It's DC. Ring cameras really aren't there for apartment buildings.

Avoiding lit areas with better cameras, and so on. It's not like this is a residential area in the suburbs. This is a busy city, you can literally walk by thousands of cameras every day and simply be a tourist. I snoop out cameras all the time out of the corner of my eye, not because I'm doing anything wrong, but because I simply notice them.

The thing is with cameras too, is you can essentially be followed. You being followed creates an easy way to identify you, non-descript clothing or not. If they follow you to a hotel, car, place of residence, etc, you can be identified. Either he got lucky and the route he took didn't have cameras along the whole route to follow him or he scouted them at least to some degree.