"When lives are lost, resolve is found" its true, but at the same time... What if those deaths had been preventable? What if you could have done something? What if everyone only ever reacts to things instead of taking initiative to prevent things from getting so bad in the first place? Many deaths that happen every day are preventable, and always happen because of some form of neglect, be it by oneself, another, or even a group.
Its true we cannot always be aware of everything at any given time, but that is why awareness must be raised, and people to be educated so that they understand what is going on. Its a struggle when we do not follow through hard enough with our convictions, but at the same time it is only made worse if we overreact. Its the difference between a peaceful protest, and a full blown riot.
What good is it to cause violence because of ones own neglect? That man (Multiple names could go here) could have been saved by anyone, yet they use his own corpse as a reason to cause damages? They are doing nothing but spitting on his grave and condemning more people to similar fates. Not as bad, but they may even try to overhype or glorify their death far more than needed, to make themselves feel more important or special. Yes exceptions can be argued for a myriad of reasons, but focus on what is most important.
Think about what/why the incidents happened in the first place. If people only care after you have died, then they never cared or cared enough in the first place.
Fear and defiance oppose each other. One must also beware to not have too much pride in themselves, and know some humility. If we are to ever be equal, we must treat each other as equal. Part of it requires us to understand each other first though.