If political submissions are accepted then we should also accept comments expressing opposite and contradicting views on the issue instead of trying to suppress them by labeling them as "bots", "online-commenter-army", etc.
If "abcdefghijklmn3" is really keen to engage with the HN community then I take back what I said. But we both know that the chances are pretty good that this person isn't into that.
Engage with the point made instead of discarding the comment as "invalid", or just ignore the comment if you don't want to engage.
I understand that he wanted to bring the story to a conclusion, and that he wasn't there for long, but why should he leave it to a fill-in-the-gaps exercise when it comes to the police?