Afraid so. The police are sworn to uphold the law, not their individual senses of morality. If an officer doesn't believe he can in good conscience uphold the law, he would be honor bound to resign his position.
Right.
A cop can't "pick & choose" who is allowed to run red lights & stop signs and who isn't.
Great, so if a law is written for cops to go out and kill every tenth person, you see no problem with that, after all they'd just be "upholding the law."
These cops should have taken their punishment, whatever that may be, rather than abet what is a heinous crime.