So far, we only know what police and investigators have said about the shooting.

The officer who shot and killed Smith had a body camera on him.

The video will be used as evidence in an investigation carried out by the Wisconsin Department of Justice.

According to the Milwaukee Journal Sentinel and ABC News, people set fire to six businesses. In light of the violence, the mayor pleaded with people to go home. It's always some underlying issues." For example, a previous analysis found that the Milwaukee metropolitan area is the most racially segregated in the country.

"If you love your son, if you love your daughter, text them, call them, pull them by the ears and get them home," Milwaukee Mayor Tom Barrett said. It is possible the issues connected this segregation — more areas of concentrated poverty, bad schools, and high crime — have long angered residents.

"It is sometimes necessary to confront witnesses with information they didn't know or they didn't know we know.

I cannot have witness statements colored or tainted by what they are seeing from other sources." Heaggan-Brown was already fired from the police department in October when he was charged with sexual assault in separate cases, the Associated Press reported: According to a criminal complaint, Heaggan-Brown and another man went to a bar late on the night of 14 August where they drank heavily and watched television coverage of the riots.

The man told investigators that Heaggan-Brown bragged that he could do anything he wanted without repercussions, and that he woke up to Heaggan-Brown sexually assaulting him.

Heaggan-Brown also was charged with soliciting two other people for sex several times since December 2015 and with sexually assaulting another unconscious person in July 2016 and photographing that victim naked.

As news of the shooting broke out, at least 200 people gathered — apparently organizing through social media — in demonstrations. And they at one point turned on reporters: "One reporter was shoved to the ground and punched," the Journal Sentinel reported. But no one can deny the fact that there’s problems, racial problems, here in Milwaukee, Wisconsin, that have to be closely, not examined, but rectified. Because if you don’t, this vision of downtown, all of that, you’re one day away. Historians say these types of violent outbursts are typically rooted in longstanding anger toward a system that has in many ways failed them.

Those protests then quickly escalated, breaking into riots. Milwaukee Police Chief Ed Flynn said 17 people were arrested during the first night of protests, all of whom had criminal records. "People participate in this type of event for a real reason," Darnell Hunt, a UCLA professor who's studied the 1992 Rodney King riots in Los Angeles, told me during the Baltimore riots after Freddie Gray died in police custody. It's not just anger and frustration at the immediate or proximate cause.

"Get them home right now before more damage is done." But protests continued on until the night of August 14. Do we continue — continue with the inequities, the injustice, the unemployment, the under-education, that creates these byproducts that we see this evening? Compounded with the racial disparities in the criminal justice system, people were clearly furious — and lashed out.