What "trained" security guard are you referring to? You do realise where you are don't you? The operators of the bars are serious gangsters as are the contractors they use to provide security. This incident has nothing to do with corruption, at least so far, but it has a lot to do with out of control bouncers who appear to think have free rein to do as they wish, probably because generally speaking , they can
Maybe he was punched maybe he was pushed I don't know and I can't really be bothered, but ultimately a retired man has ended up in the ICU. whatever happened was far from ideal which ever way one looks at it