The Constitution defines how the country operates. The legal framework for everything that happens. If the evidence was not gathered constitutionally, then it cannot be applied.
If we allow punishments from unconstitutional evidence gathering to stand, then we are basically saying that it's not important. The ends justify the means and all of that. Ignore the Constitution, and all of the reasons that the American colonies told England to fuck off, and all of the people who died, and all of the ideas put into creating a Constitution that made sure people could not be abused in the way the colonies were abused. All of those smart ideas don't mean anything because this one guy should be punished.
That's not how the country works. If you want it to work that way, you are against the American Constitution, against the American people, and therefore a terrorist. You might as well be in the desert chopping journalists' heads off. The ones that reported this story, because obviously it undermines how you feel America should be. Why not, if the ends justify the means?
If the way to a better America is to require Americans to quarter troops at home, and the troops can go through their hosts' belongings looking for any crime at all, it's fine, because the ends justify the means, right?
It is a tragedy that this guy goes free. But it is one tragedy. To think that sidestepping the way things are done here is a good thing is to desire an end to America. This is not hyperbole. That's why you will find Mencken quotes scattered about.
The Troll moderation on parent is not appropriate. This is probably a genuine concern, and deserves to be moderated up. Likewise, I put the time into illustrating just why, even though it sounds good, it cannot be allowed to stand, for the express reason of explaining just how contrary to the foundation of the entire American government this idea is. The idea should not be buried as a troll - it should be shouted widely, and ridiculed all the while.
And the only thing worse than "hang him anyway" would be "lol they are shitting on the Constitution anyway" because, while you aren't calling for the Constitutionally innocent to be punished, you are actively dismissing a chance to rein in bad actors before they spread.