Updated

Stephan Cannon, 26, was sentenced to life in prison without parole for the murder of former St. Louis Police Capt. David Dorn after a Missouri jury convicted him in July, according to reports.

Cannon was convicted of shooting and killing Dorn during a night of looting and rioting in June 2020 in the wake of the death of George Floyd in Minnesota.

DAVID DORN DEATH: ST. LOUIS MURDER TRIAL GOES TO JURY IN CASE OF RETIRED POLICE BOSS SLAIN DURING 2020 RIOTS

Dorn, 77, was responding to a burglary alarm at a friend's pawn shop when he encountered a group of looters. He was struck four times and died from his injuries.

Dorn and four officers were struck by bullets, while other officers were pelted with rocks and fireworks and 55 businesses were burglarized or damaged across St. Louis during the protests.

Stephan Cannon in a mugshot and David Dorn seated in police uniform at his desk

Stephan Cannon, left; David Dorn  (St. Louis Metro Police Department/ Missouri Department of Public Safety)

The septuagenarian had served 38 years on the St. Louis police force before working six years as police chief in Moline Acres. He had retired from the Moline Acres department in 2014.

Cannon was convicted of first-degree murder, first-degree robbery, first-degree burglary, stealing $750 or more, unlawful possession of a firearm and three counts of armed criminal action — all felonies.

MY HUSBAND CAPT. DAVID DORN WAS MURDERED IN 2020 RIOTS. HIS KILLER HAD HELP DIVIDING AMERICA.

According to KSDK's Christine Byers, Cannon was sentenced to life without parole on the first-degree murder charge.

Captain David Dorn

Dorn served 38 years on the St. Louis police force. (St Louis Metropolitan Police Department)

Judge Theresa Counts Burke sentenced Cannon to a total of 16 years for armed criminal action, 10 years for robbery and five years for burglary.

Cannon, in the sentencing hearing, insisted that he was not the one who killed Dorn, KSDK reports.

Dorn's widow, Ann Wood-Dorn, said during the hearing that her husband "became a victim of the very thing he fought against."

Additionally, one of Dorn's sons, Brian Powell, issued a direct message to Cannon: "I hope your eyes are woke. You still have time to get everything together and make amends with your maker."

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The aftermath of the shooting was allegedly caught on video that had been shared to Facebook Live and was later removed. Prosecutors played it in court.

Fox News' Stephanie Pagones and Michael Ruiz contributed to this report.