The 21-year-old had been severely malnourished after medical records documented serious weight and muscle loss more than a year before his death.

POTOSI, Mo. — A Missouri father has been sentenced to 17 years in prison after entering an Alford plea to charges stemming from the death of his severely disabled 21-year-old son, whose deteriorating nutritional condition had been documented by medical providers more than a year before he died.

Lawrence A. Riehl, 62, of Sullivan, was sentenced Sept. 14 in Washington County Circuit Court on first-degree involuntary manslaughter and second-degree domestic assault, both felonies, and misdemeanor abuse of a person with a disability. The sentence closed a criminal case that began after Riehl’s son was found dead March 26, 2025, inside the family home. Authorities said the young man was nonverbal, severely disabled and depended on others for daily care. Prosecutors initially pursued a second-degree murder charge but later changed the charges after reviewing the evidence, including medical and autopsy findings.

Circuit Judge Brice Sechrest imposed 10 years for involuntary manslaughter and seven years for second-degree domestic assault. Those sentences are to run consecutively, producing the 17-year prison term. Riehl also received one year on the disability-abuse count, but that sentence is concurrent with the felony terms and does not increase the total time to be served. Local reporting based on the Washington County Prosecuting Attorney’s Office said the two felony sentences were the maximum terms available for those offenses. Riehl entered his pleas under the Alford framework, which permits a defendant to maintain innocence regarding the underlying allegations while acknowledging that prosecutors have evidence sufficient to obtain a conviction.

The final charges represented a significant change from the case as it was first presented in June 2025. A Washington County sheriff’s detective sought charges of second-degree murder and abuse of an elderly, disabled or vulnerable person after a roughly three-month investigation. The probable cause statement described an autopsy, medical records and conditions inside the home as central to the investigation. Prosecutors later said the evidence and autopsy findings supported amending the case to first-degree involuntary manslaughter, second-degree domestic assault and abuse of a person with a disability. The Alford pleas resolved those amended charges without a trial in which witnesses would have been called to establish the allegations before a jury.

The investigation began on the night of March 26, 2025, when the Washington County Sheriff’s Office was called to the residence. Detective Jason Kaempfe wrote in the warrant application that the young man was on a bedroom floor and appeared severely malnourished. The filing described trash, empty food containers and human waste in the room. Riehl told investigators his son was severely autistic and nonverbal. The document also says another son had prepared food for his brother before going to sleep and later woke Riehl after discovering that the 21-year-old had died. Authorities have not publicly released the victim’s name in their case announcements, citing his status as a vulnerable person.

An autopsy was performed the next day. The probable cause statement said the young man was 69 inches tall and weighed approximately 50 pounds. Later sheriff’s-office information reported in local news accounts put his weight at about 55 pounds, but both accounts described profound malnutrition. The medical examiner classified the manner of death as homicide and determined that the young man died after choking on fecal matter. The detective concluded that starvation led him to consume it. The filing also said the young man’s knees had become locked and could not be moved, which investigators attributed to his legs remaining in one position for an extended period. Authorities did not publicly specify exactly how long he had been in that condition.

The warrant application showed that concern about his nutrition existed long before the fatal day. Medical records from March 2024 documented severe fat loss, severe muscle wasting and a loss of more than 5% of body weight within one month. The records recommended a high-protein, high-calorie diet and a daily multivitamin. They also said he had been having difficulty standing and could no longer walk. Those records became a central part of the criminal investigation because they documented that his physical decline had been identified well before his death. Prosecutors later characterized the death more broadly as resulting from prolonged inadequate nutrition and care rather than as an unexpected medical event that developed without warning.

The filing also raised questions about services that investigators said had been offered to the family. Kaempfe wrote that an investigator with the Missouri Department of Health and Senior Services told him that Riehl had been offered and scheduled for services but did not follow up. The public court document does not provide a full description of those services, identify every agency involved or explain what happened after they were scheduled. It also does not establish whether another family member or outside provider was assigned responsibility for arranging the young man’s care. Those unanswered details are important limits on the public record, even as prosecutors relied on the documented medical decline and the conditions found at the home in bringing the case against Riehl.

Investigators also reviewed the amount of food that Riehl said had been prepared shortly before his son’s death. According to the warrant application, about 27 pizza rolls had been made for the young man. The detective compared their estimated calories and protein with general federal dietary guidance and concluded that the meal would not have provided a full day’s recommended intake even if all of it had been eaten. That calculation was one part of a broader investigation rather than an independent medical diagnosis. The more substantial evidence cited in the filing included the young man’s extreme weight, his documented muscle and fat loss, his loss of mobility and the autopsy findings concerning his condition at death.

Several weeks after the death, investigators said Riehl contacted the Washington County coroner. The probable cause statement attributes to Riehl an acknowledgment that the family knew there was a problem and had been trying to obtain Medicaid coverage and placement in a facility. The filing further says he made two later inquiries about the death certificate because a life insurance policy existed. Prosecutors did not publicly allege in the final charges that insurance money was a motive for the conduct that led to his son’s death, and the available court filing does not establish such a motive. The contacts were included among the facts the detective presented while seeking the original warrant and should be understood in that limited evidentiary context.

Washington County Prosecuting Attorney John I. Jones IV described the young man as someone who depended on others for his most basic needs. “No sentence can restore what was lost, but this outcome brings the case to a just and appropriate conclusion,” Jones said after the sentencing. His office said the case was resolved after the state reviewed the medical and autopsy evidence and amended the original charge. The 17-year term comes from the consecutive felony sentences rather than the misdemeanor count. Although one television report initially described the one-year misdemeanor term as consecutive, the prosecutor-based local reports, the total sentence and other coverage state that the misdemeanor sentence runs concurrently.

Riehl’s Alford pleas mean the case ended with convictions without an admission to the prosecution’s factual account. The court’s sentence nevertheless carries the same legal effect as a sentence following an ordinary guilty plea to the charges. Public records reviewed for this report do not indicate another pending trial in the case against Riehl, and authorities have not announced additional charges arising from his son’s death. The sentencing therefore marks the principal conclusion of the prosecution that began with the March 2025 death investigation and the murder allegation filed the following June.

Author note: Last updated November 6, 2026.