Two police officers shot and killed a 23-year-old black man who came within several feet of them brandishing a knife Tuesday in St. Louis, several miles from where Michael Brown was killed last week in Ferguson, police said. St. Louis Police Chief Sam Dotson told reporters that the suspect shot Tuesday had brandished a knife at officers and refused to drop it when police ordered him to, instead saying, "Shoot me now. Kill me." Just after the shooting, a crowd of at least 100 people gathered, some of them chanting "Hands up! Don't shoot!" — the refrain protesters have chanted recently in the nearby suburb where Brown, an unarmed black teen, was shot dead by a white police officer, triggering days of unrest.