I will say this until I am blue in the face, these incidents though tragic are red herrings.
The real problem is the environment that emboldens these officers to do such terrible things to fellow human beings. These sorts of things don't happen "out of the blue". The real question is, "what is the environment and police procedures and atmosphere that enables this sort of thing"
Look at the following "initial" result
Smith was awarded a small settlement for what happened to her, and the county that managed the jail agreed to“expand staff training and adopt new policies barring Taser use on prisoners who pose no reasonable threat, are not forcefully resisting, or are ‘limp or prone.'” But that only happened after intervention from the Department of Justice; before the DOJ got involved, an internal sheriff’s office review of Smith’s ordeal somehow “found no wrongdoing by guards and said the Taser use did not constitute excessive force.”
Whenever something awful happens there is always an "internal review" and that "internal review" uses any and every conceivable excuse to side with the police officers. The amount of mental gymnastics and logical contortion required to find "someway" to side with these officers in these sorts of things is reprehensible.
SO here is my solution to these sorts of problems.
#1, no more internal investigations and interdepartmental investigations by the good ol' boys. We need 100% independent and autonomous oversight that is completely divorced from police culture. There is this argument that "only police understand what it is like and therefore they are the only ones who can judge these things." I call Bull Excrement on that. Rational and sane human beings with life experience dealing with people and an understanding of the Constitution is all that is required.
#2, officers that witness and allow these tragedies should be held to the exact same consequences as the officers who commit these atrocities. If my friend and I rob a liquor store and my friend decides to rape and kill the clerk I don't get charged with petty theft just because I didn't rape and kill. NO, my charges increase dramatically since I was an accomplice. We need the same thing to happen to police.
#3, officer need to be personally and financially liable for these sorts of things.
Anyways, the real problem is the environment the emboldens and enables these sorts of things. It doesn't just happen out-of-the-blue.