Indianapolis

Plainfield Prisoner Hit With 50 Years For Fatal Beating Of Ailing Inmate

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Published on July 15, 2026
Plainfield Prisoner Hit With 50 Years For Fatal Beating Of Ailing InmateSource: Google Street View

A Hendricks County judge on Tuesday sentenced an inmate to 50 years in the Indiana Department of Correction after a jury found him guilty in the beating death of a fellow prisoner at Plainfield Correctional Facility. The conviction and punishment close a case that prosecutors described as a targeted, brutal attack on a medically vulnerable man who, relatives say, depended on help while in custody.

Jury Convicts, Judge Imposes 50-Year Term

According to prosecutors, surveillance footage and witness testimony showed Robert Allen Miller walking into the cell of 60-year-old Jeffrey Clouser, staying inside for several minutes, then emerging with a visibly swollen hand and carrying Clouser's personal items, including a pillow and shoes. Clouser was later discovered severely beaten and was pronounced dead. Jurors found Miller guilty of robbery resulting in serious bodily injury, a Level 2 felony, and aggravated battery, a Level 3 felony, and also determined that he was a habitual offender before the judge imposed the 50-year sentence, as reported by Fox59.

Coroner, Family Say Victim Was Vulnerable

The Hendricks County coroner ruled Clouser's death a homicide caused by blunt-force trauma. Family members have said Clouser was medically fragile and required assistance while incarcerated. Reporting by The Probable Cause includes interviews with relatives who said surveillance video showed a single inmate entering Clouser's cell multiple times before the fatal attack.

Prosecutor Calls Attack 'Extraordinary Violence'

Hendricks County Prosecutor Loren Delp said the outcome "reflects exactly what justice demanded," arguing that Miller "preyed upon a vulnerable victim, inflicted extraordinary violence, and showed absolutely no remorse," according to the prosecutor's office, which spoke with Fox59. Officials noted that Miller was not charged with murder. When issuing the sentence, the judge cited Miller's criminal history and the fact that the assault took place while he was already serving time.

Questions for Prison Oversight

Plainfield Correctional Facility is a medium-security state prison that provides medical and mental health services, according to the Indiana Department of Correction. Advocates and family members say that context makes Clouser's killing especially troubling and highlights the ongoing challenge of keeping inmates with disabilities safe when they are housed in general-population units.

What Comes Next

Miller will serve his 50-year term in the Indiana Department of Correction following the Hendricks County proceedings, which concluded with the jury's verdict and the judge's sentencing decision. Clouser's relatives say they plan to keep pushing for accountability and for changes in how medically vulnerable prisoners are housed, according to family statements reported by The Probable Cause.