Sure, the kid was swinging at the officer, and I suppose that warrants the officer acting in self-defense. But another question is, what are the protesters supposed to do? The government has all the power, and can simply snuff out any resistence. If you just stand in the streets, they really don't care, they are going to take your freedom. Imagine if the US suddenly had a dictator that just decided they were going to…
Was THIS protestor being violent? Was THIS police officer justified in firing?
In this case, there is one video that isn't getting much viewership which very clearly shows the protestor who was shot, chasing down and beating a police officer on the ground. The officer that fired was coming to the rescue when the protestor attacked him with a pipe and was shot.
Here is that video from BBC Chinese: https://twitter.com/bbcchinese/status/1179082367337713666