Do you know what happened to him, causing the blood? The Thank You was the only thing he was able to give and he gave it to you with all his remaining life. This is so sad and touching. The highlights of the image is drawing you into the scene and only your imagination can reveal was going on there not too long ago.
He was one of the many homeless here in Athens.
A group of not Greek people made a pass at night and found that he had some money with him. The blood was from him. Doctors said that he had many crushed bones and the death was the only sure thing. Thank you, everyone, for your replies.
Hope he found his path to heaven.