Should a Police Officer be fired for STOPPING Police Brutality?

PLEASE SHARE!!! Why was this Police Officer fired for STOPPING Police Brutality while other ones are literally getting away with murder? What is really going on in America? http://www.wkbw.com/news/city-revisits-fired-buffalo-cop-case http://www.gofundme.com/Cariol-Horne https://www.change.org/p/thomas-p-dinapoli-don-t-punish-a-good-cop-for-standing-up-to-police-brutality