A long time ago, I read a story about Joe Hill, the songwriter and IWW activist. It said that one of the reasons he was found guilty and executed was that his alibi couldn't be proved. One of the main pointers to his guilt was a bullet wound, because one of the people involved in the crime of which he was accused had been shot and wounded. He claimed that he had been shot in a fight over a woman whose name he was not prepared to reveal out of concern for her reputation.

This does make an interesting parallel, if one accepts the story. Mind you, it was told by somebody on the right side of politics, so it's credibility can be challenged, and I've never had the resources to dig into it myself.