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LaTonya Jones, the daughter of Bettie Jones, holds a photo of her mother during a vigil outside her home, Dec. 27, 2015, in Chicago. Bettie Jones was shot and killed at the front door of her home by police responding to a domestic dispute call made by her upstairs neighbor. Quintonio LeGrier, 19, was also killed by police during the incident. Scott Olson/Getty Images

Images emerged Monday showing the grim scene inside a Chicago apartment building where a police officer responding to a domestic disturbance call shot and killed two people over the Christmas weekend. The apartment of Bettie Jones, a 55-year-old African-American grandmother who was an unintended shooting victim, had a blood-stained carpet and bullet holes in the walls following the shooting Saturday, according to media accounts.

Jones lived in a ground-floor unit , downstairs from the apartment of Quintonio LeGrier, a 19-year-old college student who was reportedly the subject of the disturbance call. The Chicago officers involved were responding to a 911 call from LeGrier’s father when they “were confronted by a combative subject” in the vestibule of the two-story apartment building, a police spokesman said, according to the Associated Press. Police shot Quintonio LeGrier, who was reportedly holding a baseball bat, and in doing so, accidentally shot Jones near her apartment door.

The death of LeGrier, who relatives said was emotionally disturbed but not violent, has prompted Mayor Rahm Emanuel to call for the Chicago Police Department and the city Independent Police Review Authority to review the training for officer response to mental health-related calls. The shooting also comes at a time when city police are under fire for a series of lethal uses of force, including the 2014 shooting of 17-year-old Laquan McDonald, who was shot 16 times by an officer.

After officials last month released video they withheld in McDonald's shooting for 14 months, Emanuel and local prosecutors announced efforts to address officers' use of force. That announcement came amid protests, as the officer involved in McDonald’s shooting was charged with murder, the city’s police superintendent was fired by Emanuel and the U.S. Department of Justice opened an investigation into Chicago police practices.

Emanuel said Sunday that he directed the head of the Independent Police Review Authority and the interim police superintendent to meet about mental health crisis calls, the New York Daily News reported. Family and neighbors of the two shooting victims seemed to agree with the mayor that changes were needed.

LeGrier's mother and father condemned police action Sunday. “Something needs to be done. I used to watch the news daily and grieve for other mothers, and now I’m grieving myself.” Janet Cooksey, the mother, told news media.

Antonio LeGrier, the father, said the officer who shot his son knew he had made a mistake, according to a Chicago Sun-Times report. “He knew he had shot blindly, recklessly into the doorway and now two people are dead because of it,” he said.

Number of People Killed by Police in the U.S. by Race | Graphiq