Rahm Emanuel promises a "comprehensive solution" for the violence that's killed 500 this year, but neighborhood leaders say his administration is too damaged and his priorities too misplaced.
The move by officials comes as demonstrators spend a third night protesting the killing of a black man by police, and as National Guard troops join city police in maintaining order.
"A warrant has been issued for her arrest," Tulsa's district attorney says of Betty Shelby, the police officer who shot and killed Terence Crutcher last Friday.
There have been calls for police reforms since 2014, but there are practical limits to how fast a willingness to change can translate into its actually happening.
The growing gap between America's rich and poor plagues many cities, including Boston, where the economy is flourishing. But a legacy of racial discrimination has left a huge wealth divide.
Law enforcement in Charlotte, N.C., is preparing for a third night of violence following Tuesday's fatal shooting of a man by police. The National Guard has been called in to help.
NPR's Robert Siegel interviews Manu Prakash, a physical biologist and inventor at Stanford University, about being awarded a MacArthur fellowship this year. He talks about his work using bioengineering, not just for basic research, but to invent ultra low cost scientific tools, such as microscopes kids can use anywhere in the world.