19-year-old black man shot by police in Wisconsin: What we know

Days after the Department of Justice released its findings on the deadly shooting of an unarmed black teenager in Ferguson, Missouri, another deadly shooting by a police officer is already drawing comparisons and sparking protests.

A Madison, Wisconsin, police officer on Friday evening shot and killed a 19-year-old black teenager who family and friends have identified to local media as Tony Robinson. Police have not yet identified the victim.

Dozens of protesters took to the street Friday night to gather near the scene of the shooting and chant slogans from Ferguson.

The city’s police chief is urging people to remain calm while authorities investigate.

Here are some things we know right now:

The officer was responding to reports of a traffic disturbance.

Police received a call that a man suspected of a recent battery had been “jumping in and out of traffic and dodging cars,” police chief Mike Koval told reporters, according to CNN.

The responding officer went to the apartment where the caller said he saw the suspect enter. Koval said the officer forced himself into the apartment because he heard “commotion.” Koval said the suspect then “assaulted my officer.”

“Once inside the home, the subject involved in this incident — the same one allegedly out in traffic and that had battered someone — assaulted my officer,” Koval said.

The police chief confirmed that the officer “did draw his revolver and subsequently shot the suspect.”

It’s not clear if Robinson was armed.

Koval said Madison police were unaware if the suspect had a weapon drawn when he was shot, but his officer suffered a blow to the head when he was “assaulted.”

Koval said that more than one shot was fired during the struggle. He said the officer and others who provided backup performed CPR on the suspect, who later died at a local hospital, Koval said.

A local CEO revealed some details about Robinson on social media.

Michael Johnson, the CEO of the Boys and Girls Club of Dane County in Madison, offered information about Robinson on Facebook and Twitter, and posted a photo of the suspect that he says was provided by Robinson’s mother.

The police chief has acknowledged the potential for a ‘volatile’ reaction.

The Wisconsin shooting comes after months of protests over the police-related deaths of unarmed black men in Ferguson and Staten Island. Both of the white officers involved in those cases were not indicted by grand juries, leading to subsequent protests.

Koval acknowledged the potential for the similar demonstrations in Madison, but urged residents to remain calm.

“In light of so many things that have happened — not just across this country, but in our own community — it’s understandable that the reaction at the scene amid some our citizens is extremely volatile, emotional, and upsetting,” Koval said. “We understand that. That’s absolutely appropriate under the circumstances.”

He called for calm and restraint to allow Department of Criminal Investigation to do its fact-finding probe.

Protests continued overnight in Madison.

Dozens of protesters gathered near the scene of the shooting last night and chanted, “Black lives matter.” CNN and other local reports said the crowds had dispersed by early Saturday.

Here’s a look at the scene Friday night, via social media:

Brett LoGiurato is the senior national political correspondent at Fusion, where he covers all things 2016. He’ll give you everything you need to know about politics, with a healthy side of puns.