Actually, Maryland has rather loose laws concerning protection of property and self-defense. If the samuri worded his police statement carefully enough, the cops might not do more than a cursory investigation. A guy in an apartment complex down the road from where we lived saw two guys stealing parts from his car, went down to confront them, and shot one of them after they refused to stop stealing his stuff. Nothing happened.
One day, the rear window of my car was smashed out (vandalism, not theft), and the B.C. Co. cop said he would write it up as malicious destruction, but said the sun could have done it! I asked the glass repair tech if that was possible, and he laughed, saying "that's a cop for you," and told how a bullet went in one side of his car and out the other as he was driving it (hardly an unlikely event in Bloodymore), and the cops accused him of trying to commit insurance fraud.
Baltimore is not surpassed for violence and corruption, not even by Chicago.