The driver was the one charged with murder? That seems quite unexpected. Eagerly awaiting the details...
I'm guessing this indicates that they believe the cause of death was a "rough ride," wherein they drove erratically with the intention of slamming Gray around the back of the van.
I'm not going to celebrate until they start repealing some of the laws that allow officers to harass, detain, arrest, and imprison people for no particular reason.
But that will never happen so commence with the circus trials.
How would not charging these officers have helped get toward your goal?