If that is true, then the police ought to stand up and say so. Instead, they are denying they intended to start a fire.
Is it too much to expect our law enforcement agencies to be truthful?
Yes. The best way to deal with reality is to learn it, and deal with it. Sometimes the police are truthful, sometimes they are not. They are certainly no better than average on that count, and given their position of power in the legal system, I would expect them to be less honest than people outside of the system.
Keep in mind that the system is "self policing," and is loath to admit error.
First, has it been determined how the fire started? If the police did start the fire, then maybe some did and some didn’t. No, it isn’t too much to expect everyone in government to be truthful, but that hardly justifies the kind of comments some people made about Dorner’s rights. He had every opportunity to give himself up and had no intention of doing so. He wanted to take as many police officers out as he could. Considering the circumstances, the police did a good job.
Yes, there were some people shot by accident, but I wonder how many people could do what police do - make split second decisions that could cost them their lives or the lives of others. It’s a stressful, difficult job, and most cops are in it to help people, not hurt them. If people don’t believe that is true, then that is their problem.