Kicking off at the ref while his team mate lay on the ground in front of him in agony with his leg in bits. And the tackle was an absolute act of thuggery too. Embarassing behaviour and no surprise given who he supported.
I'm fairly sure 99% of the people defending Williams right now haven't even seen the video, because they're coming out with corkers such as "line of sight" and so on.
The only way he's unaware of the seriousness of that situation is if he's blind, stupid, deaf or all three.