FBI asked to investigate Chicago police shooting of two

CHICAGO, Jan. 1 (UPI) -- Chicago's top prosecutor asked the FBI to investigate the fatal shooting of two people by a Chicago police officer who was answering an domestic disturbance call.

The request to investigate the deaths of Quintonio LeGrier, 19 and Betty Jones, 55, comes five days after the shooting and amid growing concerns about law enforcement's use of force. Police have said LeGrier was killed after threatening his father with a baseball bat and Jones was accidentally shot. Their deaths have been ruled homicides.

Cook County State's Attorney Anita Alvarez said an outside review will help determine if criminal charges should be filed against the officer.

"This is a deeply disturbing incident that demands a very deliberate and meticulous independent investigation," she said. "It is absolutely critical in this case, as in all police-involved shootings, for the investigative agency to get it right so that justice can be served."

Alvarez continues to face intense backlash for waiting more than a year to file murder charges in the 2014 police shooting death of 17-year-old Laquan McDonald and waiting just as long to release a video showing the officer shooting the teen 16 times, some in his back.

Thursday, protesters marched again through downtown Chicago calling for the resignation of Mayor Rahm Emanuel as his administration released some 3,000 pages of emails related to the McDonald shooting. The emails show City Hall coordinated a response to the shooting, among other things.