The cops are disappointed, thinking they had gathered sufficient evidence that a case was worth putting before a jury. The public is outraged. Another bad guy gets away, it appears.
Yet, as painful as it is for all, dropping the charges is still right.
Our society has already decided we do not want to live in a world where someone can lose their freedom and go to jail without evidence that passes a rigorous series of tests.
Let's flip it around. The video is absolutely inconclusive in terms of the identity of the shooter. For all intents and purposes, the video was just as likely to point to your neighbour, your friend, or even you, than to the accused.
In this situation, it's not even a matter that the accused was tried and the verdict was returned not guilty. That would have been due process as well. But, well short of that, the evidence didn't even stand up to warrant trial. It's simply insufficient. What else should we do? Had he gone to trial and been convicted with evidence that wasn't even deemed strong enough to be worth the time and money to go to trial, would our society be better off? I say no with no hesitation. It would mean we'd arrived at the place where anyone, anytime, could end up going to jail without the benefit of a trial through which evidence had to pass.
Society should be clear on this. There are societies on our planet where governments exercise absolute power and impunity in terms of who walks freely and who disappears in the middle of the night, never to be heard from again; or who can have an opinion and who ends up being stoned to death without a fair trial. We have decided we do not want that world. These checks and balances are there to help protect our rights and freedoms.
This freedom comes at a price - we'd rather a guilty go free than an innocent get locked up. It happens. Bad people get away with it (IF such is what has occurred here) sometimes. Tipping that balance to the opposite slant would be the end of free society as we know it.