“Assassins also have to think about the getaway.”
Oswald’s big plan? Slip out of the book depository, walk several blocks, take a city bus, and then hail a taxi to his boarding house. There he picked up his 38 and a coat and began to walk aimlessly?
Well, at least there was some privacy in a bulding, as opposed to outdoors amongst a massive crowd for the dastardly deed.