Mary Ann Green

Mary Ann Green (courtesy Susan Smith)

Mary Ann Green

* Homicide

Mary Ann Green
59 YOA
Spring Creek Mobile Park
Highway 23 South
Oskaloosa, IA
Mahaska County (Jurisdiction)
September 27, 1987

On September 27, 1987, Mary Ann Green was found stabbed to death in her Oskaloosa, Iowa, mobile home, located in the Spring Creek Mobile Park on Highway 23 South in Mahaska County. Mary Ann’s murder fell under the jurisdiction of the Mahaska County Sheriff’s Office, whose solid investigative skills quickly led to the arrest of Green’s stepson, Richard Lee Green, and his acquaintance, David Kelly Yant.

mahaska-county-map
Mahaska County in Iowa
Oskaloosa in Mahaska County
Oskaloosa in Mahaska County

Richard Green and David Yant were charged with first-degree murder in Mary Ann’s death. Their first trial in Mahaska County resulted in a hung jury. The second trial, held in Polk County, ended with a hopelessly deadlocked jury. In the third and final trial, a Washington County District Court jury acquitted the two men on March 2, 1989.

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* Those familiar with the criminal justice system understand the law’s complexities and that an acquittal does not necessarily mean an unknown killer remains at large. In any murder trial, all known evidence may not be made available to jurors for specific legal reasons, and jurors also reach conclusions based on lawyering strategies.

Iowa Cold Cases contacted both the Oskaloosa Police Department and the Mahaska County Sheriff’s Office to inquire as to the status of Mary Ann Green’s homicide, and received prompt responses from both law enforcement agencies. According to Mahaska County Sheriff Paul R. DeGeest, the Mary Green murder is by “lawful terms” unsolved, though there is no investigation being done and there will be no further investigation.

Mary Ann Green's gravestone (courtesy photo)

Mary Ann Green’s gravestone (courtesy photo)

Mary Ann Green was buried in Forest Cemetery in Oskaloosa, Mahaska County.

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9 Responses to Mary Ann Green

  1. Lori says:

    They may have gotten away with murder in this life but a whole lot of Justice awaits them on the other side. May you two never feel a moment of peace, may your dreams include nightmares and may you both rot in hell.

  2. tina says:

    In 1987, Mary Ann Green resided in a home at Oskaloosa’s Spring Creek Mobile Park on Highway 23 South.
    The 59-year-old widow did not live lavishly, so few people other than friends and family knew she was a wealthy woman.

    For many years, her deceased husband Herman Green owned and operated a successful back-hoe business in Oskaloosa; when Herman died in June of 1987, Mary Ann inherited a large estate.

    Mary Ann and Herman had no children of their own; but they raised her nephew Jackie as a son, and Herman had five sons from his first marriage.
    On September 27, 1987, Mary Ann Green was found in her home stabbed to death in what looked like a personal and up-close attack.

    When she tried to defend herself against the knife blows, several of her fingers were slashed nearly off.And in her last moments of life, Mary Ann managed to get to a closet door mirror. With her own blood she wrote the letter “N.”

  3. Sandy R says:

    I wonder what name she was trying to indicate with the “N”? What a horrible death! And so soon after her husband passed away. Lori..I agree with your sentiments..I hope the killer/s rot in hell!

  4. 62-98 officer says:

    I looked up both subjects on Iowa Dept Of Corrections website and neither one is incarcerated. How sad. Basically they got off scott free then? Hopefully karma caught up to them.

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