Fred Grabbe is a convicted murderer from Clark County, Illinois, who strangled his wife Charlotte on their family farm in 1981, burned her body in a 55-gallon drum on the banks of the Wabash River, and disposed of her remains in the water. He was convicted of first-degree murder in 1985, won a new trial on appeal, was convicted again in 1988, and served decades in prison before being released on mandatory supervised release in July 2022 at the age of 83. Charlotte’s body was never recovered.
The Killing on the Family Farm
Charlotte Grabbe, born January 31, 1942, went to work in the soybean fields on the family’s Clark County farm on July 24, 1981, and never came home. Fred, born June 2, 1939, told authorities she had driven off in her green Ford LTD. The scene told a different story. Charlotte’s purse, her lunch, and a note she had written were found in the farm’s machine shed. Witnesses reported seeing a blond woman driving her car that day, and Charlotte was not blond.
The couple’s marriage had begun under coercion. According to their daughter Jennie, Fred raped Charlotte when she was fifteen, and the resulting pregnancy led to their 1957 marriage. They divorced in 1961, remarried in 1962, and raised two children, Jennie and Jeffrey, on the farm near the Wabash River. Family members described Fred as violently abusive to his wife and children throughout. By 1981 he had moved into a cabin on the property and begun an affair with a 24-year-old bartender named Vickie Jane McCalister. Charlotte filed for divorce in April 1981.
Despite the suspicious scene in the machine shed, no body turned up and the case went cold. Authorities were prepared to let it go.
How the Case Was Cracked
Charlotte’s children refused to accept that. Jennie and her husband Darrel Livvix posted a reward that eventually reached $25,000 for information leading to an arrest and conviction. In 1984 they hired private investigator Charles Pierson to find out what had happened to Charlotte.
Pierson tracked down the blond woman the witnesses had seen. It was McCalister, by then jilted by Fred for another woman, Barbara Graham. According to Pierson, the killing had been “driving her crazy” and making her physically ill. She gave investigators a full account.
McCalister said she had hidden behind a tractor and watched Fred strangle Charlotte in the machine shed. Afterward, she helped him burn the body over two nights in a 55-gallon drum fueled by diesel, placed under a maple tree on the banks of the Wabash. Fred then threw pieces of Charlotte’s skull into the river. McCalister drove Charlotte’s green Ford LTD to Terre Haute, Indiana, and abandoned it there.
She received full immunity in exchange for her testimony. Fearing retaliation, she changed her identity and left the area, then resurfaced to testify at Fred’s second trial in 1988. Fred’s defense attorney, Fred Cohn, argued she had made the story up to collect the reward. Prosecutors indicated after the appeals process that she would likely receive the $25,000.
The Maple Tree Evidence
Without a body, prosecutors needed something physical to back McCalister up. They found it in the tree she had pointed them to.
Consulting arborist Russ Carlson and scientists from the University of Illinois examined the growth rings of the maple on the riverbank. The 1981 rings on the branches facing the river, directly above where McCalister said the burn barrel had stood, showed a developmental slowdown consistent with exposure to petroleum products. Chemical analysis confirmed diesel fuel on those specific branches. Branches on the opposite side of the tree were unaffected. The tree evidence became the signature feature of the case and later gave the Forensic Files episode about it the title “The Root of All Evil.”
Two Trials and a Life Sentence
Fred was charged with murder on November 8, 1984, in Clark County Circuit Court. A jury convicted him of first-degree murder on June 24, 1985, and he was sentenced to life in prison on September 11, 1985.
The first conviction was overturned on appeal in November 1987, and a new trial was ordered. The retrial began on March 28, 1988. On April 12, 1988, a jury convicted him again. This time he was sentenced to 75 years.
Violence Around the Case
The prosecution did not unfold quietly. On July 11, 1985, between Fred’s first conviction and his sentencing, Barbara Graham, the girlfriend who had followed McCalister, arrived at the Clark County Jail at 1:45 a.m. and fired at least five shots while demanding to see Grabbe. Clark County Sheriff’s Deputy Mike Davidson was shot in the leg. Graham was arrested, charged with attempted murder, and later sentenced to 16 years for the jailbreak attempt.
Later in 1985, while Fred was incarcerated, the family farmhouse burned down. Investigators suspected associates of Fred were behind the arson. By the time the Chicago Tribune profiled the case in October 1988, only the fireplace remained standing on the property.
The worst of the surrounding violence fell on the Grabbes’ son. Jeffrey Grabbe had testified for the prosecution at his father’s first trial about Fred’s beatings and about Fred’s threats toward him after the killing. In February 1988, just before the retrial, Jeff disappeared during a business trip to California. Boaters found his body on March 22, 1988, in about 35 feet of water a mile and a half off Seal Beach. He had been shot three times in the head and weighted with a 16-pound anchor, though the body had broken free. He was 29. Dental records identified him in May 1988, after his father’s second trial had ended.
Seal Beach Detective Darrell Hardin told the Los Angeles Times that Jeff had been killed for trying to “double-cross” four accomplices in a scheme to launder $7 million in stolen bank notes, money orders, and counterfeit currency. “Jeff had some property of the others. He got too greedy,” Hardin said. Police explicitly ruled out any involvement by Fred Grabbe in his son’s death.
Jennie’s Role
Charlotte’s daughter Jennie, now Jennie Woolverton, drove the case from start to finish. She hired the private investigator, posted the reward, pressed authorities to bring Fred and McCalister before a grand jury, and pushed her father to take a polygraph test, which he first agreed to and then refused. She testified at both trials.
“Ever since he killed her, I could not let it rest,” she told the Chicago Tribune. “I had to know what happened to my mother. I knew my dad too well. I knew he was guilty.” She said of her father: “He has absolutely no remorse. None.” She had not spoken to him since his 1985 arrest.
Release in 2022
Fred Grabbe spent the final portion of his incarceration at the Dixon Correctional Center in Dixon, Illinois. On July 15, 2022, the Illinois Department of Corrections released him on mandatory supervised release, a form of parole under Illinois law. He was 83. The IDOC confirmed he had been transferred to another location and noted that he “may not have direct supervision at the transferred location.”
Charlotte Grabbe’s remains have never been found.