If I'm (one of the) some posters you mentioned, I think you totally misunderstood what I said, or we really look at the world differently. I'm not saying that LE and criminals should be on a level playing field, but I believe it's in the Constitution that all people must obey the same laws, and nobody (LE, judges, politicians, clergymen, etc.) is supposed to be exempt. I know my uncle gave up his job in LE when he saw all the favoritism going on. He got into trouble one day for issuing a parking ticket to the mayor's car, another time for stopping a judge for speeding, and several other stories I've forgotten because it was a long time ago. He told them that he wasn't a judge, and it wasn't his job to decide who had a good reason for breaking a law; it was his job to enforce the laws, and let the courts figure out the rest of it.
I don't think LEOs should have to wait for someone to attack or show a weapon to pull out a gun if it feels necessary for control, but I also don't believe they have the right to shoot someone who isn't a threat (but is maybe very disrespectful or something.) What I don't like is when LEOs will lie on a police report, or even in court, to avoid having to say they've seen another one abusing a suspect, using racial slurs while talking to suspects (or even witnesses), planting evidence (like a throw-away gun) to cover up a mistake or worse, driving under the influence, abusing a domestic partner or children, and on and on. MOST of LE would probably be honest if directly asked, but I don't think a lot of them would want to be the first one to point a finger at a well respected co-worker.
When he took off like that, I thought maybe he had lost sight of where the second guy went, and was looking for him on the street rather than inside the building. I thought in one of the earliest articles I read that he said the second guy ran off, and he tried chasing after him but lost him. I could be remembering wrong though, I've read a lot since then.
All MOO