Before we blame the police, or Gray, we need more information.
Watching the video a woman is yelling “his legs is broke” or something to that effect. Who knows what or when injuries happened?
It’s possible he was roughed up before being put in the van and as a result his spine was fractured.
It may very well be that as a result of of the arrest and actions before being placed in the van are the cause and his spine, already compromised, then snapped as a result if the “ride”.
Which could be analagous to moving someone who has been in a terrible car accident, where their neck or the spine is already compromised and moving them exacerbated their injury.
We’ll have to wait and see but, as of now, it doesn’t look good or right to me.