Those poor officers.  Like in any group of people, there are good and bad ones.  In this society the tendency to demonize everyone for the actions of a few sets a very dangerous precedent and things like this can happen.  Every person should be judged on their own merits.  Saying all cops are bad because of what a few have done is so insane and the public outrage leads to things like this.  I don't know for sure what this person's motivations were but there have been enough instances that some don't see law enforcement as people anymore and it makes their job so much more dangerous and we need good cops to do their jobs to keep us safe.