The latest on the shooting deaths of a man and woman by Chicago police responding to a domestic disturbance call (all times local):

8:20 a.m.

Pastors and community residents have scheduled a prayer vigil at the site where a 55-year-old woman and 19-year-old man were shot and killed by Chicago police.

The vigil is scheduled for 2 p.m. Sunday in honor of Bettie Jones, who police said was accidentally shot and killed about 4:25 a.m. Saturday as they responded to a domestic disturbance call in a West Side neighborhood. Quintonio LeGrier, a student at Northern Illinois University, was also shot.

Rev. Marshall Hatch said the family is "absolutely devastated."

Mayor Rahm Emanuel said in a statement that the shooting is being investigated by the city's Independent Police Review Authority. Law enforcement involved will be placed on 30-day administrative duty as part of a new policy.

The Chicago Police Department is also the subject of a federal civil rights investigation.