Chicago police 'accidentally kill' mother of five

A Chicago police officer "accidentally struck and tragically killed" a mother of five after responding to a domestic disturbance, department officials say.
Bettie Jones, 55, was killed along with her neighbour, 19-year-old Quintonio LeGrier, who was the reason for the police call-out early on Saturday.
Chicago Mayor Rahm Emanuel said an investigation had been launched.
The city's police department is already the subject of a federal investigation over its use of force.