Re the urination. If anyone watches Sammy retell the story, it's clear he couldn't have done such a thing. He tells of a lady who knew of him and happened upon him right after the killing. She pretended to be his girlfriend to throw the cops off. He wouldn't even admit to her at that very moment that he had anything to do with what just happened. There is no way he relieved himself on his target right before police showed up. He didn't trust anyone around him at that moment enough to do that. That's only my opinion.