OK, OF COURSE there are occasions when innocent people are shot/injured. It's part of the cost of having undereducated, inexperienced young cops on the street. The fact is cops come from the human race and therefore, are subject to human frailties.
The fact is, if these incidents were not rare, they wouldn't be newsworthy. The statistics are that society is safer because of the presence of cops than it would would be without them. Dogs bite people every day: Not news. Man bites dog: News. Get it???
Many of us wouldn't be so bitter if we didn't see the "little people" being prosecuted for things that the "elite" get away with.
I recently read a professional police message board, and the contempt shown for the average citizen was disgusting. And the
unspoken rule that no erring cop EVER is to be held accountable by other cops is absolutely horrifying.