The Dardeen Family Mur-ders

On the crisp evening of November 18, 1987, in the small rural community of Ina, Jefferson County, Illinois, a family was packing for a fresh new start. Keith and Elaine Dardeen — who both went by their middle names — had lived in a modest beige-and-white mobile home just outside town for about a year. Keith worked as a treatment-plant operator at the nearby Rend Lake Water Conservancy District. Elaine found a job at an office-supply store in nearby Mount Vernon. Their young son, Peter (then nearly three years old), called the area home. Elaine was seven months pregnant with their second child, and the family had already begun to plan a move back to Keith’s hometown of Mount Carmel.

Keith had grown increasingly uneasy about the wave of violence gripping the rural region. In the previous two years, at least 15 people had been murdered in Jefferson and Franklin counties — including a 10-year-old girl who was raped and killed in May 1987. Residents lived with a constant sense of fear. Some even armed themselves at basketball games. Keith and Elaine wanted nothing more than a simple, safer life for their family.

The Discovery That Rocked the Entire Community

Keith failed to show up for his shift. His mother, Joeann Dardeen, was called. When police and Keith’s father, Don, entered the mobile home on Illinois Route 37, they found a horrific and deeply personal nightmare.

Elaine and Peter lay in the same bed, tucked neatly under the covers. Elaine, who was pregnant, had suffered such brutal injuries during the attack that she went into labor. The newborn baby girl — whom the family planned to name Casey or Ian — was also discovered dead minutes after entering the world. Both Elaine and Peter had been beaten to death, apparently with a baseball bat that was later recovered at the scene (a gift Peter received from his father earlier that year). Elaine had been bound and gagged with duct tape.

No forced entry. Nothing appeared to have been taken. The crime scene suggested the killer or killers had spent time at the trailer, possibly cleaning up or making it look staged.

The Husband’s Body: Found a Mile Away

The next day, investigators discovered Keith’s body in a wheat field near Rend Lake. He had been shot three times in the face and genitals and castrated. His red 1981 Plymouth Plymouth sedan was later found abandoned in a Benton police station parking lot, its interior covered in blood. Forensics proved Keith had been killed within hours of his family — the coroners ruled all deaths occurred close in time.

Local authorities were stunned. Keith had initially become the prime suspect. But the brutal nature of the attacks, combined with the way Elaine’s body was arranged and the absence of any robbery motive, pointed to something far more deliberate and personal.

The Community in Fear: A Second Wave of Violence

The Dardeen murders were not the first horror in the area. Residents were already on edge after more than a dozen killings in two years. Many now armed themselves daily, skipped social events, and slept with lights on. Some even speculated the killings were linked to Satanism or a regional serial killer. These rumors were quickly dismissed, but the terror they created in the community lingered for decades.

Investigation: A Question of Motives and Methods

Jefferson County detectives, working with the Illinois State State Police, interviewed more than 100 people and poured through 30+ thick case files. No one in the tight-knit community had a bad word for Keith or Elaine — they were remembered as loving, musical church-goers (Keith sang, Elaine played piano). A small amount of marijuana was found, but it was never linked to the family.

Robbery was ruled out: jewelry, cash, and electronics sat untouched. Sexual assault was ruled out for Elaine. No clear motive emerged — until the lead of a man named Tommy Lynn Sells changed everything.

The Confession That Still Haunts Families

In the late 1990s/early 2000s, after Tommy Lynn Sells was convicted of multiple murders and sentenced to death for the killing of a 13-year-old Texas girl, he began claiming responsibility for dozens of other cases. He named the Dardeen murders as one of his.

Sells offered three different conflicting versions of how the crime happened, involving everything from Keith inviting him home for dinner and a threesome to a chance stranger encounter. He described forcing Keith to drive him to a field, mutilating the body, and then returning to the trailer to kill Elaine and Peter. While some details about the crime scene aligned with public reports, major elements did not.

Law enforcement and the Dardeen family repeatedly expressed doubts — Sells was notorious for false confessions. In 2014, Sells was executed in Texas for the teenage girl’s murder. He never traveled to Illinois to help investigators, and he never went to the Dardeen crime scene. The family’s matriarch, Joeann Dardeen, has stated publicly for years that the details Sells shared did not match her son’s character and that the case remains very much unsolved.

The Current Status: Still Open, Still No Answers

As of 2026, the Dardeen family murders are officially one of Illinois’ most disturbing cold cases. The case files are still stored in Jefferson County, and local detectives have continued working the matter quietly. No one has been charged. The community and family want the killer brought to justice, but 39 years later, no definitive confession has withstood scrutiny.

Who Was the Dardeen Family?

Keith Dardeen, 29: A gentle, frugal, church-loving man who refused to sell drugs even when pressured. A devoted husband and father who was actively planning a safer move for his pregnant wife and young son.

Elaine Dardeen, 30: A loving mother and devoted wife. She found joy in music and family. Pregnant with her second child when the nightmare began.

Peter Dardeen, 3: A happy, curious toddler with a full life ahead of him. A birthday gift baseball bat from his father was later used as the murder weapon in one theory.

Baby Casey Dardeen: The unborn daughter whose tragic short life ended alongside her mother and brother in a single act of unimaginable violence.

The Ongoing Pain: 39 Years Later

Keith’s mother, Joeann Dardeen, has visited the scene, spoken with investigators, and kept the case alive. She has said the family was never given the answers they deserved and that she will never stop looking. In 2019, she told reporters the case still moves slowly but feels far from solved.

A Haunting Reminder

The Dardeen family murders stand as one of the most violent and personal unsolved crimes in Illinois history. A loving husband, pregnant wife, toddler, and newborn baby torn apart in their own home — no clear motive, no arrest, no justice.

Despite every twist, false confession, and rumor, the killer has never been identified.

The question remains: Who on Earth could commit such a soul-crushing act against a peaceful family only weeks away from a new beginning?

The Dardeen family murders continue to haunt Jefferson County and the families of every small community that feels the same fear. Their story is one of love, unimaginable loss, and a community still searching for answers in the dark.

If you have any information about the Dardeen family murders, please contact the Jefferson County Sheriff’s Office at 618-244-8004.

The case is still open. The Dardeen family deserves justice.