Carol Thompson was a well-liked, active mother of four who was deeply involved in her community, including her children's activities and church events. Her brutal murder in a quiet, middle-class neighborhood was unexpected and deeply unsettling.
The crime scene was chaotic, with evidence of a struggle throughout multiple rooms. Blood was found on walls, curtains, and rugs. A trail of blood led from the kitchen to the front door, where investigators found a pool of blood, three unspent pistol rounds, a broken knife handle, and pieces of plastic. The bedroom was ransacked, suggesting a search for something, though nothing appeared to be stolen.
Carol fought back against her attacker, even managing to escape multiple times. She eventually crawled or dragged herself down the street to a neighbor's doorstep, where she pleaded for help before losing consciousness.
The motive was primarily financial. Cotton Thompson had taken out multiple life insurance policies on Carol, totaling over $1 million (equivalent to $10 million today). He also wanted to free himself from the marriage to pursue other relationships. Additionally, he planned to kill Carol's father to gain access to her family's fortune.
Investigators discovered that Cotton Thompson had a connection to Norman Mastrian, a criminal with mob ties, through a previous legal consultation. Dick Anderson, the actual killer, eventually confessed that Cotton had hired him through Mastrian to murder Carol. The murder weapon, a pistol, was traced back through several criminals, ultimately linking it to Cotton.
Dick Anderson was the actual killer hired by Norman Mastrian, who was in turn hired by Cotton Thompson. Anderson sneaked into the Thompson home, waited in the basement, and attacked Carol when she returned to her bedroom. He used a rubber hose, a pistol, and a paring knife in the attack before fleeing the scene.
Cotton Thompson was not forthcoming about the multiple life insurance policies he had taken out on Carol. When the policies were discovered, he released a detailed statement to the press instead of speaking directly to investigators. His behavior, combined with the excessive number of policies and his connection to known criminals, made him appear highly suspicious.
The chain lock was installed by Cotton Thompson, who instructed his son to lock it before leaving for school. This prevented Carol from escaping when she tried to flee her attacker. The chain lock was a key part of Cotton's plan to ensure Carol couldn't escape the attack.
The community was shocked by Cotton Thompson's arrest, as they had perceived the Thompsons as a happy, ideal couple. Neighbors and friends were stunned that Cotton could be involved in such a brutal crime, especially given his public image as a devoted father and husband.
Cotton Thompson was found guilty of first-degree murder and sentenced to life in prison. The jury deliberated for over 26 hours before reaching their verdict, considering the case as a whole, including the motive, evidence, and testimony from key witnesses.
When thirty-four-year-old St. Paul housewife Carol Thompson was murdered in the spring of 1963, her entire neighborhood was shocked by the evil that had invaded their middle-class neighborhood. As far as anyone knew, Carol was a happily married mother of four who appeared to have it all, but the cruel brutality of her murder suggested someone had hated her enough to kill her.
When investigators began to dig deeper into Carol’s life and background, they found the truth was that, far from the happy façade she showed the world, Carol Thompson’s life was anything but happy. In the weeks that followed her death, investigators would uncover an unexpectedly complicated conspiracy involving several well-known criminals, all leading back to the one person no one wanted to suspect.
Thank you to the Incredible Dave White of Bring Me the Axe Podcast for research and Writing support!
References
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—. 1963. "Woman is linked to 'hire' murder." New York Times, November 5: 17.
Cesnik, Jim. 1963. "'Cotton' Thompson--as father, friend." Minneapolis Star, June 25: 1.
Letofsky, Irv. 1963. "Never an acquittal vote." Star Tribune (Minneapolis, MN), December 7: 1.
Letofsky, Irv, and Jim Cesnik. 1963. "City man held in Phoenix in Thompson slaying case." Star Tribune, April 20: 1.
Minneapolis Star. 1963. "FBI to check policies on Mrs. Thompson's life." *Minneapolis Star *, April 3: 1.
—. 1963. "St. Paul mother 'critical' after stabbing in home." Minneapolis Star, March 6: 1.
—. 1963. "Thompson arrested in wife's slaying." Minneapolis Star, June 21: 1.
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Roberts, Sam. 2015. "T. Eugene Thompson dies at 88; crime stunned St. Paul." New York Times, September 6: 28.
Romer, Sam. 1963. "Interview with captured suspect." Star Tribune (Minneapolis, MN), April 20: 1.
Rudick, Irvin. 1963. "Anderson told Sharp he slew Mrs. Thompson." Minneapolis Star, April 23: 1.
Star Tribune. 1963. "Police seek clues in St. Paul slaying." Star Tribune (Minneapolis, MN), March 7: 1.
—. 1963. "Police want more talk with victim's mate." Star Tribune (Minneapolis, MN), March 23: 1.
—. 1963. "Statement also lists his assets." Star Tribune (Minneapolis, MN), March 27: 1.
Thompson, William. 2007. Dial M: The Murder of Carol Thompson. Nepean, ON: Borealis Books.
United Press International. 1963. "Thompson trial told of insurance." New York Times, November 6: 29.
Young, Douglas. 1963. "Husband of slain St. Paul woman explains $1,061,00 in insurance." Star Tribune (Minneapolis, MN), March 27: 1.
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