White Chicago police officer Jason Van Dyke has been found guilty of second-degree murder and 16 counts of aggravated battery with a firearm in the shooting death of black teenager Laquan McDonald.

The Justice Department says an investigation has found Chicago police are systematically violating the civil rights of people in the city through excessive use of force, poor oversight and inadequate training of officers.

After video of a white Chicago police officer shooting a black teenager 16 times was released to the public, Chicago Mayor Rahm Emanuel became the focus of intense backlash. He responded by firing Police Superintendent Garry McCarthy. In many ways this was history repeating in a city that has had twice as many police chiefs than it’s had mayors in the past six decades — and more than its share of police scandals.  

A former prosecutor in the Cook County State's Attorney's office says it took far too long to investigate the shooting death of Chicago teen Laquan McDonald at the hands of a white police officer. That prosecutor happens to be running for U.S. Senate.

Chicago Police Superintendent Garry McCarthy has been fired after widespread criticism for his handling of a high-profile shooting of a black teenager that led to white officer being charged with first degree murder.  Protesters have been calling for McCarthy's dismissal.