Time and again we see prosecutors charging suspects not with the crime that they, the prosecutors, can easily prove. Rather, they charge them with some inflated version of the crime in the hope of forcing a plea bargain. This is true especially if they can reach for a capital charge, because death-qualified juries convict at higher rates.
There is a huge problem with this that is widely understood, which is that it imposes an unfair cost on the accused -- who is still presumed innocent -- in seeking his or her fair trial. You should not have to run the risk of decades in prison or death
just to go to trial. At trial you should face the charge that best represents the crime you're actually alleged to have committed, not the most serious variation that can be brought against you. The price for getting to be charged as you allegedly deserve shouldn't be accepting a guilty plea.
But the other problem, less often discussed, is that if you
do go to trial the prosecution sometimes loses. This is because the inflated charge damages their credibility with the jury. The crime they could have easily persuaded the jury you had committed is now off the table; instead, they have to take the inflated charge and insist, with a straight face, that the facts support it. Juries often don't buy this, for the simple and excellent reason that it is not true.
Here we have a case where the government could have charged with second degree murder and walked away with an easy conviction. It obtained attempted second degree convictions for everyone else in the car. It could have obtained an actual second degree conviction for the youth actually killed.
Instead they went with the capital crime, and now they have a mistrial. Those for whom this was an open and shut case have one less reason to believe in the reliability of the courts. Those who see racism afflicting the system have one more argument in favor of their proposition that the system doesn't treat young black men fairly.
We see it over and over, but of course it will continue because it usually works. In part due to this systematic overcharging,
more than 90% of criminal cases are plead.
Our system depends on it: we try far too many people for crimes to ever hope to give them all a day in court.