Crime + investigation

How Chicago Is Trying to Solve 51 Strangulation Homicides of Women

For nearly two decades, Chicago faced a curious rise in the number of unsolved murders against women involving strangulation—all in certain areas of the city. We take a look at one of the unsolved cases and what police are doing to solve the string of murders.

Bruno Passigatti
Published: May 21, 2020Last Updated: July 16, 2026

For nearly two decades, between 2001 and 2018, Chicago faced a curious rise in the number of unsolved homicides of women that involved strangulation—all in certain areas of the city. But according to data collected by the Murder Accountability Project, the city’s police have so far been unable to find the culprit, or culprits.

The nonprofit, which tracks the locations and circumstances of unsolved murders nationwide with a computer algorithm, published a report in March 2019 describing a cluster of 51 murders of women via strangulation that occurred on Chicago’s West Side, Near South Side and Far South Side.

"There is one very odd pattern in the map: There is a very linear array of body recovery sites on the Chicago Near South Side, which forms an almost perfect north-south line," says Thomas Hargrove, the nonprofit's founder and chairman. "That line coincides pretty precisely with the Chicago Transit Green Line elevated train. We don't know what to make of that. We certainly have shared that fact with the Chicago police. They don't know what to make of it either. One thing we're pretty sure about is, it's not a coincidence."

A Possible Break

In January 2020, the Chicago Police Department was able to connect a man, Arthur Hilliard, with one of these unsolved murders.

Based on DNA evidence, Hilliard was charged with the murder of Diamond Turner, a 21-year-old woman who reportedly went missing on March 1, 2017, and was found dead two days later in a city garbage can. According to the Cook County State's Attorney's Office, the medical examiner ruled that Turner died from blunt force trauma and asphyxia. The garbage can was behind Hilliard's apartment in the 7300 block of South Kenwood Avenue.

That location falls within the cluster, Hargrove says.

Hargrove says he spoke with Chicago Police Department's Chief of Detectives Brendan Deenihan to discuss whether Hilliard could be connected to some of the other strangulation murders in the past two decades.

"I can tell you, generally speaking, that the Chicago Police Department, insofar as it's able, is going to carefully consider that possibility," Hargrove says. "Any arrest they make among these 51 strangulations should be—and I'm sure will be—aggressively reviewed for the possibility that they are in fact linked to other killings." Chicago Police Department declined to comment for the story.

Hilliard pleaded not guilty on March 11, 2020 and is being held without bail at the Cook County Jail. His next expected court date is May 26, 2020 as of the time of publication.

The Lane Bryant Shootings: Chicago Mass Murder Still Unsolved More Than 10 Years Later

On February 2, 2008, a man walked into a woman's clothing store in Chicago and shot and killed five women. It's one of the worst mass murders in the city's history, and the murderer is still on the loose.

On February 2, 2008, a man walked into a woman's clothing store in Chicago and shot and killed five women. It's one of the worst mass murders in the city's history, and the murderer is still on the loose.

By: C.M. Frankie

‘People Are Scared, and People Don’t Want to Talk’

While it remains to be seen whether Hilliard's case will help solve other cold-case strangulations of women in Chicago, there are people pushing for systematic changes within law enforcement and how they work with communities to solve crimes. Dawn Valenti, who has been a victims' advocate and crisis responder since 2007, supported Turner's family after the murder, aiding them with the logistics of the aftermath. While she was with victim advocacy nonprofit Chicago Survivors, she helped provide the Chicago Police Department with training to take certain precautions in the aftermath of homicides. The goal was to help officers better understand the crimes from a survivor’s perspective.

For example, she urged awareness that officially designating a homicide as “gang-related” can affect victims and their families’ eligibility for life insurance—even when the victim wasn’t in a gang. She also stressed how deeply the trauma can affect family members, from causing them to forget important information, like their phone number, to the difficulty of hearing new information about the case. One recommendation: When updating a victim’s loved one, make sure they are not alone.

“There are a lot of parents who go to sleep a parent and wake up as a parent without a child,” Valenti says.

When it comes to the city's unsolved homicides, Valenti says, part of the challenge is a lack of communication within communities. "What I've seen happen is a couple things: People are scared, and people don't want to talk. They want to retaliate," she says.

Sometimes when police question families, people decline to provide information for the investigation, she says. In one case she worked on, the parent of a murder witness refused to provide police with contact information for the child, in an effort to protect them.

"The living cling to the living," she says.

And while she acknowledges it might appear that a serial killer is responsible for the deaths of the dozens of women killed by strangulation, she says closer examination may suggest that some of the murders are simply connected—that some of the women's stories intersect—or that there are coincidental similarities.

Crime Central

True crime, all the time. Stream 2,000+ episodes of chilling true crime series.

7-DAY FREE TRIAL

Commercial-free, Cancel anytime

Crime Central

Exclusions & terms apply

Restructuring

Valenti is hopeful that recent changes within the city government will help crack more cold-case murders.

In late 2018 and 2019, police policy organization The Police Executive Research Forum, through a Bureau of Justice Assistance grant, assessed the Chicago Police Department’s homicide investigations process in an effort to improve homicide clearance rates. It made dozens of recommendations, and the department has taken several steps so far to tackle the city's rising violent crime rates.

One of these steps, which the organization advised, was further dividing the Chicago Police Department’s geographic boundaries in order to decrease the time it takes for detectives to arrive at the scene of a shooting or homicide. The Chicago mayor’s office announced April 30 that it is redrawing policing districts, adding two to the existing three,  and redistributing the department’s 900 detectives across the five police areas. Previously, since 2013, there were just areas North, Central and South. For the first time, Chicago Police Department will also have a citywide homicide unit, dedicated to investigating deaths. In addition, each of the five newly drawn areas will have its own homicide division, which will report to the corresponding area deputy chief.

“CPD as an entity was siloed, with a lot of people responsible for problems in the same geography. This concentrates the accountability under the geographic chiefs and commanders,” Beck told CBS.

Chicago Police Department hopes the smaller policing districts will mean faster arrival times at crimes scenes, increasing the chances that detectives can locate witnesses and further limit evidence contamination.

Beck said that these structural changes also are intended to help build trust between police and communities.

“When you’re assigned to a piece of geography, you not only have ownership in the results that you achieve—because that is now the turf that you’re responsible for—but you’re also much more likely to engender trust if you work with the same community and begin to understand that community in a much better way," he told the Chicago Tribune. “Part of community policing is being responsive to the community in the way that you police, and our most responsive people are the ones that are tied to that geography. And I want that to be part of what our detectives feel too.”

And while she’s confident that the CPD is eager to solve some of these cold-case homicides, Valenti says, "It's not going to happen overnight."

Biography: H.H. Holmes

Naomi Ekperigin explores the life of America's first known serial killer, H.H. Holmes, and his infamous "murder hotel" in Chicago.

5:14m watch

Related Features:

Did Ted Bundy Carry Out the 1969 Garden State Parkway Murders?

Teen Susan Davis and Elizabeth Perry were killed outside Ocean City, N.J.

7m read

Monica White Dated 'Shopping Cart Killer' Anthony Robinson, Suspected of Killing 6 Women

Lifetime's 'The Dating App Killer' is based on her experience.

6m read

Who Was Robert Eugene Brashers, the Man Behind the Yogurt Shop Murders?

The murders remained unsolved until DNA revealed a serial killer.

7m read

Who Was the Atlanta Ripper?

An unidentified serial killer preyed on Black women during the 1910s.

5m read

Who Is Joel Rifkin? The Serial Killer Admitted to 17 Murders

He committed some of the killings in his mom's house on Long Island, N.Y.

7m read

Why Police Believe Serial Killer Billy Mansfield Had More Victims

Authorities looked for more remains in Florida in June 2026.

5m read

How Was Jeffrey Dahmer Caught?

Police arrested the serial killer on July 22, 1991.

6m read

Who Was the 'Sacramento Slayer'? All About Morris Solomon Jr.

The serial killer took his first known victim on June 18, 1986.

9m read

Before Dumping Victims at Gilgo Beach, Rex Heuermann Tortured Them in His Long Island Home

The "Long Island Serial Killer" pleaded guilty to seven murders.

6m read

How Rex Heuermann Was Arrested in Connection to the Gilgo Beach Murders

The man allegedly behind seven homicides was caught in 2023.

6m read

Why Would a Dad Kill 5 of His Infant Children?

Paul Allen Perez murdered and abused the newborns between 1992 and 2001.

6m read

Where Is Gary Ridgway Now? Inside the Green River Killer's Life in Prison

He has lived in isolation at Washington State Penitentiary since 2004.

7m read

Why Juan Corona Is One of America's Most Overlooked Serial Killers

He murdered 25 migrant workers between February and May 1971.

5m read

The Search for the Santa Rosa Hitchhiker Murderer Continues More Than 5 Decades Later

Seven girls and young women were murdered in California in the 1970s.

5m read

Was Herb Baumeister a Serial Killer Responsible for Murdering 25 Men in Indiana?

He died by suicide in July 1996 after police issued a warrant for his arrest.

7m read

Why ‘Fast Food Killer’ Paul Dennis Reid Stopped Fighting Death Sentence

Reid went on a murder spree in Tennessee over three months in 1997.

6m read

How Billy Chemirmir Exploited Senior Living Communities and Killed 22 People

His crimes led to the formation of an advocacy group.

7m read

The Wedding Venue Employee Who Turned Out to Be a Serial Killer

Edward Wayne Edwards killed his foster child and two couples.

7m read

He Looked Like a Caring Nurse’s Aide—But Donald Harvey Was a Prolific Serial Killer

The "Angel of Death" was convicted of murdering 34 patients.

6m read

How Racial Disparities May Have Impacted the 'Freeway Phantom' Case

Six Black girls were killed in the D.C. area during the early 1970s.

6m read

Was Aileen Wuornos’s Girlfriend Tyria Moore the Reason Why She Killed?

Moore was the one person Wuornos couldn’t bear to lose.

5m read

How Familial DNA Helped Solve the Murder of a Teen Girl and Identify a Serial Killer

"Jupiter Joe" Martinez killed 13-year-old Minerliz Soriano in 1999.

6m read

Inside BTK Killer Dennis Rader's Life in Prison

Rader has been serving 10 consecutive life terms since 2005.

4m read

What Is 'Yosemite Killer' Cary Stayner's Life Like Today?

In 1999, Cary Stayner, murdered four women at Yosemite National Park.

5m read

What Happened to Ted Bundy's Daughter, Rosa?

Rosa Bundy is a private figure connected to a notorious killer.

6m read

Why ‘Monster of the Andes’ Pedro Alonso López Only Served 14 Years for 110 Murders

He claimed to have murdered more than 300 young girls between 1978 and 1980.

7m read

What Did Some of America's Most Notorious Criminals Have as a 'Last Meal'?

The last meals of infamous inmates have varied widely.

6m read

Where Is the Golden State Killer Now? Joseph DeAngelo’s Life in Prison

DeAngelo is housed in a unit with lots of isolation.

4m read

What Was Ted Bundy's Execution Like?

All the details of the serial killer's January 1989 execution.

6m read

Ted Bundy's Childhood: From Lonely Boy to Window Peeper to Serial Killer

How the serial killer's youth led to adult crimes.

6m read

What It Was Like Growing Up With Ted Bundy

Edna Cowell Martin reflects on her bond with her serial killer cousin.

7m read

Charles Manson's Children: How Many Did He Have, and Where Are They Now?

Manson’s sons grew up largely disconnected from their father.

5m read

Did Leaded Gasoline Play a Role in Gary Ridgway and Richard Ramirez's Killings?

Growing evidence highlights lead's connection to violent crimes.

5m read

Was Lavinia Fisher America's First Female Serial Killer?

She was executed in February 1820 in front of onlookers.

6m read

What Did Lucy Letby Do? All About the British Nurse's Crimes and Motive

Prosecutors alleged the caretaker got a “thrill” out of killing.

7m read

From Ray and Faye Copeland to Fred and Rosemary West, These Couples Were Truly Partners in Crime

Love turned deadly for the Copelands, the Wests and more.

12m read

Are the Zodiac Killer and the Black Dahlia's Killer the Same Person?

A self-taught codebreaker believes he’s solved two of the most vexing cold cases of the 20th century.

8m read

The ‘Torso Killer’ Was Convicted of 5 Murders. He’s Now Confessed to More Than 20

Richard Cottingham’s latest one closed a 60-year-old cold case.

6m read

A Serial Killer Known As 'The Doodler' Is Likely Still At Large

Victims are still waiting for the Bay Area killer to be apprehended.

6m read

Is Lead to Blame for the Surge of Serial Killers in the 1970s and ‘80s?

Serial killers Ted Bundy and Gary Ridgway were exposed to lead as kids.

7m read

Who Is 'TiKTok Killer' José Jurado Montilla?

Esther Estepa was pictured with Spanish content creator before she vanished.

4m read

How Serial Killer Andrew Cunanan Evaded Capture Before Murdering Gianni Versace

Cunanan fatally shot the fashion designer on July 15, 1997.

6m read

The Real Killers Who Inspired Hollywood’s Darkest Characters, Like Patrick Bateman and Buffalo Bill

'American Psycho,' 'The Cell' and more draw on actual murders.

8m read

How DNA Solved the Yogurt Shop Murders

Why it took decades to implicate Robert Eugene Brashers.

5m read

How the 1970s Gave Rise to the American ‘Serial Killer’ Trope

John Wayne Gacy and Ted Bundy helped inspire the term.

7m read

Heather Robinson Was Abducted by Her Uncle Who Killed Her Mom

John Edward Robinson sold her as an infant to his brother.

7m read

Richard Ramirez, Dennis Rader and Other Serial Killers Caught in Unexpected Ways

Some unlikely clues took down the most careful murderers.

7m read

Did 'Son of Sam' David Berkowitz Blame a Dog for His Crimes?

The killer is infamous for the explanation behind his attacks.

5m read

Does Aileen Wuornos Haunt the Florida Bar Where She Was Arrested 35 Years Ago?

Police took the serial killer into custody at The Last Resort.

6m read

Officials Have Identified a Serial Killer in Massachusetts

Prosecutors believe Kevin Lino murdered two unhoused men.

5m read

Aileen Wuornos: Did America's First Female Serial Killer Act in Self-Defense?

Wuornos sold sex to survive—ultimately killing seven men.

8m read

4 Female Serial Killers Who Will Haunt Your Dreams

Meet four female murders whose stories you won't forget.

5m read

Albert Fish Abducted Children, Ate Their Remains and Then Confessed in Letters to His Victims' Parents

He was caught after the 1928 murder of 10-year-old Grace Budd.

6m read

The Golden State Killer and Other Serial Killers Who Mysteriously Stopped Murdering

The Golden State Killer and the Zodiac Killer top the list.

6m read

Why There Are Fewer Female Serial Killers Than Male Killers in the U.S.

Female killers' motives also tend to differ from those of males.

7m read

The Golden State Killer Prosecutor Doesn't Think Joseph DeAngelo Stopped Killing in 1986

Thien Ho sentenced Joseph DeAngelo decades after his first kill.

6m read

Aileen Wuornos: Movies, Books and Podcast Episodes About America's First Female Serial Killer

What to watch, read and listen to for more on the female killer.

6m read

The Surprising Way in Which 'Taxi Driver' Influenced 'Son of Sam' David Berkowitz

The killer drew inspiration from the Martin Scorsese movie.

6m read

What Happened to Béla Kiss, Hungary’s Forgotten Serial Killer?

Investigators found bodies of women he killed in barrels in 1916.

6m read

The Real Killers Who Inspired 'The Silence of the Lambs'

Buffalo Bill is based on a combination of actual murderers.

5m read

The ‘Son of Sam’ Law Was Put into Place to Stop David Berkowitz From Profiting Off His Crimes

States aimed to balance free speech with victim compensation.

7m read

Was a Bad Childhood to Blame for 'Night Stalker' Richard Ramirez Becoming a Serial Killer?

A&E talks with Dr. Scott Bonn, criminologist and author of the book, 'Why We Love Serial Killers' about what he thinks were the powerful catalysts for the makings of a serial killer.

5m read

Richard Ramirez and Other Serial Killers Whose Family Members Were Murdered

Some of the most infamous criminals in history experienced murders first-hand before they starting doing the killing themselves.

5m read

Richard Ramirez's Death: What Were the Final Days of the 'Night Stalker' Like?

He was sentenced to death in 1989 for 13 murders, but escaped execution when he died of natural causes in 2013.

5m read

Ed Gein: The Skin-Suit-Wearing Serial Killer Who Inspired Psycho's Norman Bates

Nicknamed "The Butcher of Plainfield," Gein enjoyed robbing graves and amassed a collection of body parts that he put on display at home.

4m read

Serial Killer Ed Gein Was a 'Model Patient' After Being Incarcerated for His Gruesome Crimes

Why the serial killer was so well-behaved after being locked up.

5m read

Why Did 'BTK Killer' Dennis Rader Keep Photographic Evidence of His Crimes?

The serial killer murdered 10 people between 1974 and 1991.

6m read

'BTK Killer' Dennis Rader Blamed 'Factor X' for His Urge to Kill—What Is It?

Identifying what Rader says drove him to kill at least 10 people.

7m read

Did Ed Gein Date Bernice Worden Before Killing Her?

The hardware store owner's murder led to Gein's arrest in 1957.

4m read

Did Ed Gein Help With the Ted Bundy Investigation?

A new wave of storytelling suggests a crossover between the two.

4m read

Ed Gein's Childhood: 'The Butcher of Plainfield' Fixated on His Domineering Mother

Gein's upbringing might have influenced his gruesome behavior.

6m read

Jerry Brudos, the 'Shoe Fetish Slayer,' Stole His Female Victims' Footwear After Killing Them

Brudos was known as the 'Lust Killer' for his Oregon murders.

5m read

John Wayne Gacy's Childhood: 'Killer Clown' Serial Killer Was Victim of Abuse

He murdered 33 male victims, some as young as 15 years old.

6m read

The Hunt to Find John Wayne Gacy's Unidentified Victims

Police are working to ID five of the serial killer's 33 victims.

7m read

John Wayne Gacy's Victims: Gone, But Not Forgotten

Victims of the "Killer Clown" shared some surprising connections.

8m read

Did Ed Gein Kill His Brother? All About Henry Gein’s Suspicious Death

The Butcher of Plainfield's sibling died in a fire in 1944.

5m read

John Wayne Gacy’s Capture Happened Because of a Missing Teen Case

The "Killer Clown" murdered 33 young men and boys in the 1970s.

5m read

How John Wayne Gacy Influenced a Cultural Fear of Clowns

The "Killer Clown" killed at least 33 young men and boys.

6m read

Living with Evil: The Women Who Married John Wayne Gacy

Gacy's outward charm fooled friends and family alike.

6m read

What Was John Wayne Gacy's Murder Trial Like?

Gacy's mental state at the time of his crimes was questioned.

6m read

John Wayne Gacy's Execution: What Were the Serial Killer's Final Days Like?

The "Killer Clown" died via lethal injection in 1994.

6m read

Ed Gein: Movies, Shows, Books and Podcast Episodes About the Butcher of Plainfield

What to watch, read and listen to for more of his ghastly crimes.

7m read

John Wayne Gacy: Movies, Shows, Books and Podcast Episodes About the 'Killer Clown'

What to watch, read and listen to for more of the "Killer Clown."

5m read

How Serial Killer Danny Rolling Influenced 'Scream' with His 1990 Slayings

The "Gainesville Ripper" killed five collegians in three days.

6m read

John Wayne Gacy’s Confession: How the Truth Finally Emerged

The "Killer Clown" revealed the crimes he’d hidden for years.

6m read

Why Do Some Serial Killers Stop Killing? It Might Be Hormonal

Could a decline in testosterone really put a halt to a killer's murderous spree?

5m read

David Berkowitz Confessed to Being the 'Son of Sam.' But Did He Really Act Alone?

During the 1970s, David Berkowitz, also known as 'The Son of Sam,' prowled New York City, fatally shooting couples in cars. By the time he was arrested in August 1977, he had killed six people and wounded seven others. Although the murders stopped after his arrest, several people who worked on the Son of Sam case are convinced Berkowitz didn't act alone.

5m read

The Shocking Reason Serial Killer David Berkowitz Targeted Women

Watch a video on the life of the infamous serial killer, Son of Sam.

1m read

'Son of Sam' David Berkowitz's Life in Prison and Chances for Parole

New York's infamous serial killer, who murdered six people in the 1970s and is up for parole in 2024, is at Shawangunk Correctional Facility. But will he be released?

6m read

How to Explain Serial Killers Who Come from Good Homes

A closer look at the lives of serial killers Dennis Rader, Randy Kraft and Richard Cottingham, whose seemingly normal childhoods gave way to unspeakable cruelty.

6m read

A Celebrated DNA Sleuth Looks to Vanquish the Demons Closer to Home

Paul Holes, a forensic scientist who helped catch the Golden State Killer, talks about the life of a homicide investigator.

6m read

Fact Check

We strive for accuracy and fairness. But if you see something that doesn't look right, click here to contact us! A&E reviews and updates its content regularly to ensure it is complete and accurate.

Citation Information

Article Title
How Chicago Is Trying to Solve 51 Strangulation Homicides of Women
Website Name
A&E
Date Accessed
August 12, 2026
Publisher
A&E Television Networks
Last Updated
July 16, 2026
Original Published Date
May 21, 2020
Advertisement
Advertisement
Advertisement