If this man was just walking home why was he confronting officers in this manner, if I was walking home and came across a line of police in riot gear I think I would turn and find another route. Being pushed to the ground and struck with a baton, does that constitute manslaughter ?
One thing that we will never know is if the pushing over caused the heart attack that killed him. Many people were pushed and struck by officers that day, are we going after all of them ?
Most people who demonstrated on that day wanted a peaceful protest but with all the high profile demos rent a mob turn up and spoil the day.
If the circumstances were reversed and a demonstrator had pushed a copper over would we have the same sympathy, would there be the outrage or would it be accepted as a risk of being a police officer.