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

You could understand if it was wet, but the photograph was dry.

So, how did this happen? First, it's hard to imagine why anyone would press his thumb to the photo like that, but second, it's hard to imagine that even if it happened that it would have resulted in what we see. In fact, it is completely at odds with our experience because we have all been handling photographs our whole lives.