Quite a few posters at www.officer.com point out that many LEOs are in more danger from their own coworkers than from any member of the public.
There are many reasons for that. For example, the majority of people that an LEO comes in contact with are normal people - who sometimes are in a hurry, or who drank a bit too much, or who simply can't find a location in an unfamiliar city. However mentality of many police officers is already heavily skewed toward distrusting everyone, looking for hidden motives, and every other aspect of paranoia. A police job appeals to some starry-eyed idealists (who are just a few,) and to people with a grudge against the whole world, and to the people who enjoy the power over others, and to opportunists (like the case here,) and to eager collectors of "protection money." Some LEOs informed the mafia; other moonlighted as hit men. This is a tough crowd, and anyone would be well advised to stay away from them. This is not possible if you, as an honest (a.k.a. "starry-eyed") officer, are required to work with them day and night, and depend on them, and to help them whether they are right or wrong.
The LA killer, Chris Dorner, is the terminal case. But his Manifesto, if true, is quite illustrative, as it exposes all this infighting and conflicts that are common in the LEO world. Even if we assume that Dorner was crazy and everyone was without fault (which is probably a 90% to 10% mix,) it still exposed other officers to antics of late Mr. Dorner - that, in the end, resulted in deaths.
I have said all of those things several times. It helps to have someone else affirm.
Thank you for posting.