09/15/2026
OFFICE OF THE PROSECUTING ATTORNEY
Washington County, Missouri
John I. Jones, IV, Prosecuting Attorney
FOR IMMEDIATE RELEASE
September 15, 2026
Contact: Melissa Cooper, Press Liaison · 573-438-6111 · [email protected]
Sullivan Man Sentenced to 17 Years in Prison in the Death of His Disabled Adult
Son
POTOSI, Mo. — Lawrence A. Riehl, 62, of Sullivan, was sentenced on September 14, 2026, to a total of
17 years in the Missouri Department of Corrections after pleading guilty to charges arising from the death
of his adult son, who had a severe disability and depended on others for his daily care. Circuit Judge Brice
Sechrest accepted the plea and imposed sentence the same day in the Circuit Court of Washington
County.
Riehl entered an Alford plea to involuntary manslaughter in the first degree, a class C felony; domestic
assault in the second degree, a class D felony; and abuse of a person with a disability, a class A
misdemeanor. Under an Alford plea, a defendant does not admit the underlying facts but acknowledges
that the evidence is sufficient to convict; the conviction and sentence are the same as on any plea of
guilty.
Judge Sechrest sentenced Riehl to ten years on the involuntary manslaughter count and seven years on the
domestic assault count, ordered to run consecutively, for a total of 17 years to serve. The court imposed a
concurrent one-year sentence on the misdemeanor count. The felony sentences are the maximum terms
authorized by law for those offenses.
The charges arose from the death of Riehl’s 21-year-old son, who was found deceased at the family’s
Washington County home on March 26, 2025. The victim, who was severely disabled and non-verbal,
died as a result of prolonged and inadequate nutrition and care. Medical providers had advised in March
2024 that the victim was suffering from severe weight loss and muscle wasting caused by inadequate
nutrition. Consistent with the treatment of vulnerable victims, the victim is not identified by name.
Riehl was originally charged with murder in the second degree and abuse of a person with a disability.
Following review of the evidence, including the medical and autopsy findings, the State amended the
charges to those to which Riehl ultimately pleaded guilty.
“This was a tragic case involving the death of a vulnerable young man who relied on others for his most
basic needs,” said John I. Jones, IV, Prosecuting Attorney for Washington County. “No sentence can
restore what was lost, but this outcome brings the case to a just and appropriate conclusion.”
The Prosecuting Attorney’s Office thanks the Washington County Sheriff’s Office and the Department of
Health and Senior Services for their thorough investigation of this case, and the Washington County
Coroner for his invaluable assistance.
The case was prosecuted by Washington County Prosecuting Attorney John I. Jones, IV. Case No.
25WA-CR00309-01.