Power to Heal is Darren Wilson's to Unleash‏

It may not be obvious, but Darren Wilson has the power to begin a process of healing in Ferguson because he is the metaphorical keystone holding both sides in place. He can bring down the structure on which the conflict is built, but it will take a great deal of courage on his part to do it because it requires a true apology from him. If he comes forward and honestly declares that what he did was a mistake—even if for some reason it was legal—the framework on which the current battle hangs will be gone. 

If, however, he comes forward and declares that he did nothing wrong, it will only serve to strengthen his keystone role supporting what's currently happening. Even worse, if he ends up being charged and found innocent, I predict the riots of the '60s will be seen as quaint. If it is declared at some point that he won't be charged at all, the result won't be much different, I'm afraid. Along with an honest apology, he needs to accept a plea of some sort that delivers some kind of punishment to send a message that his actions aren't being seen as unconditionally valid. 

Darren Wilson has in his hands the power to begin a process of recovery or remain the keystone that supports an ongoing battle that will continue to rage. Fair or not, the future is now in his control.