[BiffSchneider]

"Hope somebody's checking large storage units near these scenes"

Unless the manager and all the workers of the storage place are in on this with the sniper, I'd imagine that those storage places have already been checked by said managers and employees. There is a rather large reward available.

This could be a storage place, but they'd have to be very careful that no one else saw them and have a place to hide the truck and/or van where none of the customers could see it. Perhaps a manager could do that. He could even fake the surveillance tape to cover up his entry/exit from the storage place. Or, it could be a bankrupt/deserted storage facility or the like.

[livius]

That's true, and an alarming thought!

But I have noticed that many of them - in my area, at least - have rather minimal security, since one of the concerns of the people who rent in them is often privacy. They don't want people to know they have such and such, and thus they object to being filmed coming and going or having to sign in at a desk.

I knew somebody in New York who actually lived in a storage unit in Queens for several months. .. And he had his car in there with him! (He was a little eccentric.)

[BiffSchneider]

Let's say you own a small retail store. You probably spend a fair amount of your day looking out at the street, waiting for someone to come in. You're probably familiar with the neighborhood cars. You might even know who drives which car. Likewise, perhaps even more so, with someone who works at a car dealership or car repair shop.

It seems to me that if the sniper does have an urban parking place within the search perimeter, he would choose a place which is not within sight of people like those described above. Even if the parking place is on a busy street, the sniper would need to worry about his immediate neighbors.

The sniper seems to be fairly calculating and careful. So, he has probably found a place where he can come and go without a lot of attention. Are there areas like that in the search perimeter?