Bystanders are diverse and emotionally rich.

This is grammatically correct, but it's peculiar to describe bystanders as "emotionally rich". Mostly they are strangers, so you don't know what their personality is like.

They may be outraged, or they may be surrounded even come up gesticulate, because they putsurrounding a scene and gesticulating, putting themselves in other's shoes.

I feel like you misunderstand what a "bystander" is. Bystanders are the ones doing the surrounding, not the other way around.

But in any case, the presentation of multiple perspectives and institutions continue to follow up on theemergency services attend an incident, more discussion and analysis can be brought out rather than make a mountain out of a molehill, or poisoning the wellng it with bystanders and enabling a better analysis.

This mostly doesn't make sense to me. What is the relationship between "multiple perspectives" and "institutions"? I don't see how "make a mountain out of a molehill" or "poisoning the well" are related.

After watchobserving the scene of bustleincident, bystanders disperse in a rush.

This is thea perpetual state of thiswithin modern society, and this phenomenon is becoming more common due to theits popularityzation ofn the Internet.