Scores of protesters clashed with police, set fire to buildings and threw rocks and bricks in Milwaukee on Saturday night, after an officer shot and killed an armed man who fled from police earlier that evening.  On Sunday, Wisconsin governor Scott Walker activated the national guard to assist if necessary, on the request of Milwaukee County sheriff David Clarke Jr.  Skirmishes between protesters and police continue on the city’s north side until after midnight, when mayor Tom Barrett pleaded for calm in a televised news conference. “We have to have calm,” he said. “There are a lot of really good people who live in this neighborhood.”  A fire burned for hours at a gas station in Sherman Park, with firefighters unable to approach because of gunshots in the area. They also extinguished blazes at a bank branch, car parts store and beauty supply store.  Police arrested three people by the night’s end, Barrett said. One officer was injured by a brick hurled into a squad car. Another car was set alight and had its windows broken, the Milwaukee police said.  The protests began after a 23-year-old man was shot dead when he fled from a traffic stop. Police said he was armed with a semiautomatic weapon, but they did not describe details of the shooting, except to say he was hit by bullets twice, in the chest and arm. Barrett said the officer who killed the man was wearing a body camera, and that the state was investigating the shooting.  Neither the man killed nor the officer were named or identified by race, though police said the officer had been with the department for six years, three as an officer. He has been placed on administrative leave, a standard department practice after a shooting.  Another police official, Bill Jessup, told the Milwaukee Journal Sentinel that it was not clear if the suspect pointed the gun or fired at the officers.  The handgun was traced to a burglary in nearby Waukesha in March, according to police, and the killed man, who had a lengthy criminal record, had been stopped for what Barrett called “suspicious activity”.  “There were 23 rounds in that gun that that officer was staring at,” Barrett said. “I want to make sure we don’t lose any police officers in this community either.”  “This is a warning cry,” Milwaukee alderman Khalif Rainey told reporters. “What has happened may not have been right,” he added. “I’m not justifying that, but nobody can deny that there are racial problems here in Milwaukee, Wisconsin, that have to be rectified, because if you don’t, you’re one day away.”  “Black people in Milwaukee are tired,” he said. “They are tired of living under this oppression.”  Tensions have intensified between local black residents and police in recent weeks, in parallel with national anxieties about police abuses and violence targeted toward officers. In July the city saw protests over the shooting 25-year-old Jay Andreson, who was shot dead in a suburb west of Milwaukee, the 2015 shooting of 19-year-old Tony Robinson, and the 2014 killing of 31-year-old Dontre Hamilton, an unarmed man with a history of mental health problems.  The white officer who killed Hamilton was subsequently fired from the department but did not face criminal charges, a decision that prompted protests, a series of reform measures and the introduction of body cameras.  In December the Justice Department and Milwaukee police department began a joint “collaborative reform initiative”, and a federal assessment is expected this fall. The project was announced after the Justice Department declined to open a civil rights investigation into Hamilton’s killing.  “This entire community has sat back and witnessed how Milwaukee, Wisconsin, has become the worst place to live for African Americans in the entire country,” Rainey said. “Where do we go from here? Where do we go as a community from here  Milwaukee’s Sherman Park neighborhood has one of the city’s higher crime rates, and has been the focus of sustained police harassment that intensified in recent weeks, according to local activists.  Stephanie Roades, a local organizer with the Showing Up for Racial Justice network, said some residents had recently started operating patrol shifts to monitor interactions between locals and police officers.  The BP gas station burned by protesters on Saturday has itself been the scene of a number of recent confrontations. In July, a station worker opened fire on a large group of juveniles he claimed were harassing him. The event prompted outrage among some community members who called for a boycott of the local business and protested outside.  Local activists told the Guardian it was likely the gas station was deliberately targeted. The owner of a gas station, Pakhar Singh, blamed outsiders for the violence that destroyed his business, and said he’s owned stations in the area for 36 years and has never had trouble. He was not sure sure whether to rebuild.  Milwaukee is America’s most racially segregated major city, according to research by the Brookings Institute, and although 40% of the city’s residents are African American, only 17% of Milwaukee police officers are black.  “Our city is in turmoil tonight,” said Ashanti Hamilton, president of the Milwaukee common council, alluding to violence that had wracked the city in the last 24 hours.  Clarke, a political ally of Republican presidential nominee Donald Trump, has been an outspoken critic of the Black Lives Matter movement. The African American sheriff has described the nebulous protest movement as “the enemy” and listed it alongside Isis as a national security threat in a recently penned article.  Five people were killed in nine shootings over nine hours across the city on Friday and Saturday, including a 36-year-old and 34-year-old who were fatally wounded outside a bar.  “Those additional facts will come out in the coming days,” Jessup said.  “As everyone knows, this was a very, very violent 24 hours in the city of Milwaukee,” he said. “Our officers are out here taking risks on behalf of the community and making split-second decisions.”
Protesters fire gunshots and torch police cars following shooting of 23-year-old who officers say was carrying a stolen handgun