Oswald in the doorway: the blog of the Oswald Innocence Campaign, by Ralph Cinque

These are cops searching the 6th floor, apparently looking for the rifle, and one of them is smoking.

Here's another guy smoking:

It was 1963. Lots of people smoked, and they smoked everywhere. There were no restrictions. 

 Is it possible that the management of a BOOK DEPOSITORY would require their employees to smoke outside due to things like...oh I don't know...FIRE?

NO! It is NOT possible. Not then. It was a different time. You've been smoking too much peyote. You're evil. You're wicked. You're a criminal. And you made mistakes. You left a trail.