Joseph Brooks, 22, will spend the next 55 years behind bars for the murder of Chicago police Officer Aréanah Preston, and he will serve every single day of it.
Brooks pleaded guilty to murder and was sentenced on Thursday at the Leighton Criminal Courthouse, becoming the first of four defendants to have his case resolved nearly three years after the 24-year-old officer was gunned down outside her home.
Judge Adrienne Davis left no ambiguity about what the sentence means. "That means you will serve every day of that 55 years. Do you understand that?"
Brooks said he did. He told the court he had converted to Islam in prison and apologized to Preston's family, offering through his attorney that he chose to take responsibility rather than go to trial, Police1 reported.
"I got caught up in the fast life. I'm going to do everything I can to become a better individual."
Three other defendants, Trevell Breeland, Jakwon Buchanan, and Jaylan Frazier, are still facing pending charges in the killing.
A night of robbery that ended in murder
Prosecutors laid out a chain of attacks that began around midnight on that Saturday in May 2023. The sequence is worth understanding in full, because it reveals something familiar: a roving, escalating crime spree carried out by individuals who treated Chicago's South Side like their personal hunting ground.
It started with the robbery of a 33-year-old woman near a restaurant in the 900 block of East 46th Street. From there, a red Kia was stolen. Two more women were robbed in the 10000 block of South Wallace Street. A man had his cellphone and Tesla keys taken. Then the group arrived at the 8100 block of South Blackstone Avenue, where Officer Preston was just getting home from work in the early-morning hours.
They shot her. Then they sold her gun.
Preston was 24 years old. She was days away from graduating with a master's degree from Loyola University Chicago. She had recently been accepted to the FBI. Her entire life was a trajectory, momentum, purpose. Brooks and his accomplices ended all of it for what amounted to a string of petty thefts and a stolen car.
A family shattered in open court
The courtroom testimony from Preston's family carried the kind of weight that no policy discussion can capture. Her mother, Dionne Mhoon, told the court that she had left her daughter's room unchanged. She referenced the patch of grass where her daughter was killed. And then she said what every parent in that position would say, with a directness that cut through the proceedings.
"I no longer have my child. Do you hear me? I no longer have my child."
Mhoon also delivered a line that should haunt anyone paying attention. She said Preston probably would have helped Brooks if he had simply asked. Instead, the encounter that ended her daughter's life began, as Mhoon put it, "for a mere barbecue," a reference to the senselessness of the spree's origins.
Preston's father, Allen Preston, spoke about his daughter's lifelong calling.
"My beloved daughter's dream as a young child was to become police officer. She was about to make a major impact on the world when her life was tragically cut short."
Her aunt, Anjela Preston, took the stand, did the sign of the cross, and addressed Brooks directly.
"Your actions, Joseph Brooks, did not only take my niece's life. You took our family away."
The pattern Chicago keeps tolerating
Aréanah Preston's murder was not an anomaly. It was the predictable terminus of a crime spree that escalated with every block because nobody stopped it. A group of young men robbed multiple victims across multiple neighborhoods over the course of a single night, and the only thing that ended the rampage was the gunfire that killed a cop.
This is what happens in a city where criminals operate with a sense of impunity. Where the political class spends more energy debating police oversight than backing the officers who patrol the most dangerous streets in America. Where a 24-year-old woman with a master's degree and an FBI acceptance letter comes home from a shift protecting the public and gets murdered on a patch of grass in front of her house.
Brooks will serve his 55 years. That is justice for one defendant. Three more await trial. But the conditions that made that night possible, the revolving doors, the emboldened criminals, the city leadership that treats law enforcement as a political problem rather than a public necessity, those conditions remain fully intact.
Aréanah Preston spent her short career protecting a city that still can't decide whether it wants to protect its officers back.

