The funeral for Chicago police Officer Ella French

A mourner wearing a memorial button arrives at St. Rita of Cascia Shrine Chapel in Chicago for the visitation for slain Chicago police Officer Ella French.

Elizabeth French looks on as the casket is prepared to be carried out following the funeral Mass for her daughter, Chicago police Officer Ella French, on Aug. 19, 2021.

A framed picture of Chicago police Officer Ella French appears beside her casket as her brother, Andrew French, steps up before the start of the funeral Mass for his sister on Aug. 19, 2021, at St. Rita of Cascia Shrine Chapel .

Police officers salute as the casket carrying the body of Chicago police Officer Ella French arrives at St. Rita of Cascia Shrine Chapel on Aug. 19, 2021.

Mourners arrive at St. Rita of Cascia Shrine Chapel in Chicago for the visitation for slain Chicago police Officer Ella French on Aug. 18, 2021.

Mourners arrive at St. Rita of Cascia Shrine Chapel in Chicago for the visitation for slain Chicago police Officer Ella French on Aug. 18, 2021.

The casket of Chicago police Officer Ella French is brought through the vestibule before the funeral Mass for French on Aug. 19, 2021, at St. Rita of Cascia Shrine Chapel.

Chicago police officers during the funeral Mass for Chicago police Officer Ella French on Aug. 19, 2021, at St. Rita of Cascia Shrine Chapel.

Police officers exit after attending the visitation for Ella French, a Chicago police officer who was fatally shot during a traffic stop on Aug. 7, at St. Rita of Cascia Shrine Chapel on Aug. 18, 2021, in Chicago.

Elizabeth French, in white shirt, prays beside the casket of her daughter, Officer Ella French, on Aug. 19, 2021, at St. Rita of Cascia Shrine Chapel in Chicago.

Police officers salute at the funeral for Chicago police Officer Ella French at St. Rita of Cascia Shrine Chapel on Aug. 19, 2021.

Police officers hug each other after the funeral Mass for Chicago police Officer Ella French at St. Rita of Cascia Shrine Chapel on Aug. 19, 2021.

Police officers, firefighters and state troopers stand outside during the funeral for Chicago police Officer Ella French at St. Rita of Cascia Shrine Chapel on Aug. 19, 2021.

Police officers stand outside the funeral for Chicago police Officer Ella French at St. Rita of Cascia Shrine Chapel on Aug. 19, 2021.

The U.S. flag is flown between two Chicago Fire Department trucks at the funeral service for Chicago police Officer Ella French on Aug. 19, 2021.

Police officers salute at the funeral for Chicago police Officer Ella French at St. Rita of Cascia Shrine Chapel on Aug. 19, 2021.

Chicago police officers assemble for the funeral for Chicago police Officer Ella French on Aug. 19, 2021, at St. Rita of Cascia Shrine Chapel.

The U.S. flag is flown between two Chicago Fire Department trucks at the funeral for Chicago police Officer Ella French on Aug. 19, 2021.

Rain falls on a police sergeant's crown cap outside the funeral for Chicago police Officer Ella French at St. Rita of Cascia Shrine Chapel on Aug. 19, 2021, in Chicago.

Mourners leave St. Rita of Cascia Shrine Chapel in Chicago after attending the visitation for slain Chicago police Officer Ella French on Aug. 18, 2021.

Chicago police officers and children wait in the vestibule before the funeral for Chicago police Officer Ella French on Aug. 19, 2021, at St. Rita of Cascia Shrine Chapel.

A police officer wears a memorial button at the funeral service for Officer Ella French on Aug. 19, 2021, at St. Rita of Cascia Shrine Chapel.

Police officers salute at the funeral for Chicago police Officer Ella French at St. Rita of Cascia Shrine Chapel on Aug. 19, 2021.

Chicago police Superintendent David Brown arrives at the funeral service for Chicago police Officer Ella French on Aug. 19, 2021, at St. Rita of Cascia Shrine Chapel.

Chicago police officers stand in the pouring rain less than an hour after people fainted from heat exhaustion at the funeral Mass for Chicago police Officer Ella French on Aug. 19, 2021, at St. Rita of Cascia Shrine Chapel.

Police officers salute at the funeral for Chicago police Officer Ella French at St. Rita of Cascia Shrine Chapel on Aug. 19, 2021.

The chapel is prepared for the funeral of Chicago police Officer Ella French on Aug. 19, 2021, at St. Rita of Cascia Shrine Chapel.

U.S. Attorney John Lausch is seen at the funeral service for Chicago police Officer Ella French on Aug. 19, 2021, at St. Rita of Cascia Shrine Chapel.

Mayor Lori Lightfoot, second from right, arrives for the funeral of Chicago police Officer Ella French at St. Rita of Cascia Shrine Chapel on Aug. 19, 2021.

Photographs in memory of Chicago police Officer Ella French are displayed before the funeral Mass inside St. Rita of Cascia Shrine Chapel on Aug. 19, 2021.

Elizabeth French, center, and her son, Andrew, left, follow the casket of her daughter, Chicago police Officer Ella French, as it is brought outside after the funeral at St. Rita of Cascia Shrine Chapel on Aug. 19, 2021.

Chicago police officers during the funeral Mass for Chicago police Officer Ella French on Aug. 19, 2021, at St. Rita of Cascia Shrine Chapel.

A flag-draped casket bearing the remains of slain Chicago police Officer Ella French is brought into St. Rita of Cascia Shrine Chapel in Chicago for her visitation on Aug. 18, 2021.

Cicero police Officer Eduardo Diaz adjusts the badge of fellow Officer Didier Cervantes, adorned with the badge number of Chicago police Officer Ella French, before funeral services at St. Rita of Cascia Shrine Chapel.

Mourners arrive at St. Rita of Cascia Shrine Chapel in Chicago for the visitation for slain Chicago police Officer Ella French on Aug. 18, 2021.

Mourners arrive at St. Rita of Cascia Shrine Chapel in Chicago for the visitation for slain Chicago police Officer Ella French on Aug. 18, 2021.

The image of fallen Chicago police Officer Ella French is displayed on an officer's uniform before her funeral Mass on Aug. 19, 2021.

Area law enforcement agency vehicles line South Western Avenue before the funeral service for Chicago police Officer Ella French on Aug. 19, 2021, at St. Rita of Cascia Shrine Chapel.

Elizabeth French, center right, and son Andrew, center left, watch as a bagpipe procession passes during the funeral for Elizabeth French's daughter, Chicago police Officer Ella French, at St. Rita of Cascia Shrine Chapel on Aug. 19, 2021. Ella French was fatally shot on Aug. 7 during a traffic stop.

Fraternal Order of Police President John Catanzara, second from right, stands outside the chapel before the funeral Mass for Chicago police Officer Ella French on Aug. 19, 2021.

A hearse carrying the flag-draped casket bearing the remains of slain Chicago police Officer Ella French arrives at St. Rita of Cascia Shrine Chapel on Aug. 18, 2021.

A hearse carrying the flag-draped casket bearing the remains of slain Chicago police Officer Ella French arrives at St. Rita of Cascia Shrine Chapel on Aug. 18, 2021.

Mourners arrive at St. Rita of Cascia Shrine Chapel in Chicago for the visitation for slain Chicago police Officer Ella French on Aug. 18, 2021.

Police officers salute at the funeral for Chicago police Officer Ella French at St. Rita of Cascia Shrine Chapel on Aug. 19, 2021.

Police officers and other mourners wait in line to attend the visitation for Ella French, a Chicago police officer who was fatally shot during a traffic stop on Aug. 7, at St. Rita of Cascia Shrine Chapel on Aug. 18, 2021, in Chicago.

A police officer walks with two girls wearing Chicago Police Department crown caps before the funeral of Officer Ella French at St. Rita of Cascia Shrine Chapel on Aug. 19, 2021.

Former Mayor Richard M. Daley exits after the funeral for Chicago police Officer Ella French at St. Rita of Cascia Shrine Chapel on Aug. 19, 2021.

Chicago police Superintendent David Brown carries a folded Chicago flag to give to Elizabeth French, mother of police Officer Ella French, following the funeral Mass on Aug. 19, 2021, at St. Rita of Cascia Shrine Chapel.

The chapel is prepared for the funeral Mass for Chicago police Officer Ella French on Aug. 19, 2021, at St. Rita of Cascia Shrine Chapel.

Chicago police First Deputy Superintendent Eric Carter, right, speaks with another officer before the funeral service for Chicago police Officer Ella French on Aug. 19, 2021, at St. Rita of Cascia Shrine Chapel.

Chicago police officers stand in formation at the funeral service for Chicago police Officer Ella French on Aug. 19, 2021, at St. Rita of Cascia Shrine Chapel.

Elizabeth French speaks about her daughter, Chicago police Officer Ella French, on Aug. 19, 2021, at St. Rita of Cascia Shrine Chapel. French was fatally shot Aug. 7 and her partner was seriously wounded after they conducted a traffic stop in the West Englewood neighborhood.

The procession for slain Chicago police Officer Ella French travels along West 77th Street after her funeral Mass on Aug. 19, 2021.

A bagpiper receives Holy Communion during the funeral for Chicago police Officer Ella French at St. Rita of Cascia Shrine Chapel on Aug. 19, 2021.

A Chicago police honor guard watches as the flag-draped casket bearing the remains of slain Chicago police Officer Ella French is brought into St. Rita of Cascia Shrine Chapel on Aug. 18, 2021.

A police officer carries the image of fellow Officer Ella French at her funeral service on Aug. 19, 2021.

Mourners arrive at St. Rita of Cascia Shrine Chapel in Chicago for the visitation for slain Chicago police Officer Ella French on Aug. 18, 2021.

Two mourners use a coat to shelter from the rain while standing outside the funeral for Chicago police Officer Ella French at St. Rita of Cascia Shrine Chapel on Aug. 19, 2021.

A mourner pauses at the casket of Chicago police Officer Ella French inside St. Rita of Cascia Shrine Chapel on Aug. 19, 2021, in Chicago.

Chicago police officers stand and embrace while in the pouring rain at the funeral Mass for Chicago police Officer Ella French on Aug. 19, 2021, at St. Rita of Cascia Shrine Chapel.

Chicago police await the hearse carrying the flag-draped casket bearing the remains of slain Chicago police Officer Ella French at St. Rita of Cascia Shrine Chapel in Chicago before French's visitation on Aug. 18, 2021.

Chicago police officers stand in the pouring rain less than an hour after people fainted from heat exhaustion at the funeral Mass for Chicago police Officer Ella French on Aug. 19, 2021, at St. Rita of Cascia Shrine Chapel.

Police officers and other mourners wait in line to attend the visitation for Ella French at St. Rita of Cascia Shrine Chapel on Aug. 18, 2021, in Chicago.

The casket of Chicago police Officer Ella French is covered with the official flag for the city of Chicago inside St. Rita of Cascia Shrine Chapel on Aug. 19, 2021.

The casket of Chicago police Officer Ella French is brought outside after the funeral Mass at St. Rita of Cascia Shrine Chapel on Aug. 19, 2021.

A hearse carrying the flag-draped casket bearing the remains of slain Chicago police Officer Ella French arrives at St. Rita of Cascia Shrine Chapel on Aug. 18, 2021.

Cardinal Blase Cupich receives the casket carrying the body of Chicago police Officer Ella French at St. Rita of Cascia Shrine Chapel on Aug. 19, 2021, in Chicago.

A woman wipes away her tears at the funeral Mass for Chicago police Officer Ella French on Aug. 19, 2021, at St. Rita of Cascia Shrine Chapel.