Acquittal of Chicago police officer in shooting death of unarmed woman prompts protest, anger

In this Monday, April 20, 2015 photo, Chicago police Detective Dante Servin listens as Judge Dennis Porter reads his decision at the Leighton Criminal Court Building in Chicago on involuntary manslaughter charges in the March 2012 shooting death of Rekia Boyd. Porter ruled that prosecutors failed to prove Servin acted recklessly, by the legal definition. Demonstrators rallied Monday night to protest the acquittal. (John J. Kim/Chicago Tribune via AP, Pool) (The Associated Press)

A few dozen demonstrators gathered in Chicago to protest the acquittal of an off-duty police officer in the shooting death of an unarmed woman.

Carrying signs saying "Black Lives Matter" and "Avenge Rekia," they rallied Monday night near the scene of the shooting on the city's West Side, to protest the verdict hours earlier.

Detective Dante Servin was charged with involuntary manslaughter in the death of 22-year-old Rekia Boyd.

Boyd was walking to a store with three friends in March 2012 when Servin, upset over noise, asked them quiet down.

Servin says he fired because he believed another person in the group was moving toward him with a gun. Police found only a cellphone.

Judge Dennis Porter ruled that prosecutors failed to prove Servin acted recklessly, by the legal definition.