There’s a difference between acquittal and innocence. For the Nisour Square case, where guards working a diplomatic-security contract for Blackwater shot and killed 17 unarmed Iraqis in 2007, that difference may be a lasting legacy.

On Thursday, Judge Ricardo M. Urbina threw out manslaughter and weapons charges against five Blackwater guards because he said prosecutors had violated the men’s rights by building the case based on sworn statements that had been given by the guards under the promise of immunity.

For all I know that was the right legal call. It was stunning to hear that the first U.S. agents to interview the Blackwater guards offered them immunity: not only were they from the State Department, not the Justice Department, but they were from the division of State that oversees the contract Blackwater held. Whether they intended to sabotage a prosecution is unknown, but that’s exactly what they effectively did.

Legal technicalities like that, preventing justice from going forward, used to cause outrage in this country — they even prompted the Death Wish franchise. But for the survivors of Nisour Square and for the families of those killed, there will be no redress. The system just basically called them hajjis.

Postscript: This doesn’t come close to representing a just outcome in this case, but at least I was able to push a corrupt State Department inspector-general out of office for misrepresenting his ties to Blackwater before a congressional panel.

Update: “Acquittal” is the wrong word, since Judge Urbina threw out the case. No one was acquitted. I’ll leave it to FDL’s legal minds to find the word I’m looking for here.