Former Champaign man sentenced to prison for altered check scheme

Mark Ohrnstein, 56, was sentenced to five years in the Illinois Department of Corrections on January 6 after pleading guilty November 25, 2025, to a Class 3 felony forgery charge in Morgan County Circuit Court. Circuit Judge Chris Reif presided and recommended placement in a corrections facility that provides substance abuse treatment. Ohrnstein also received six months of Mandatory Supervised Release, a $500 fine, and credit for four days already served in the Morgan County Jail.

Prosecutors said charging documents show Ohrnstein altered a check drawn on a South Jacksonville resident’s bank account. The check had originally been made payable to an automobile dealership; prosecutors allege Ohrnstein added his own name as a payee and attempted to pass the altered check as legitimate. The case moved from charging to plea and sentencing in a matter of weeks, concluding a local prosecution that saw the victim seeking redress for a tangible financial loss.

Court records and prior local coverage outline a nearly two decade long pattern of arrests, convictions, and substance abuse struggles for Ohrnstein. In 2019 he was sentenced to four years in prison after pleading guilty to burglary and identity theft in Champaign County. Authorities say the Morgan County arrest and conviction are the first on the west side of the state for Ohrnstein, marking an extension of his legal troubles beyond his previous jurisdictions.

The sentence and the judge’s treatment recommendation underscore how the county’s criminal justice system is balancing punishment with efforts to address underlying addiction. For Morgan County residents, the case serves as a reminder of how financial crimes can be linked to broader patterns of substance dependency and repeat offending. It also highlights the practical steps victims must take after fraud is attempted, from notifying their banks to preserving evidence for prosecutors.

Local legal officials characterized the outcome as an example of prosecutorial focus on check fraud and identity-related offenses, which can carry consequences beyond fines and jail time because of restitution, court costs, and supervised release conditions. For residents who handle mailed checks or sensitive financial documents, the conviction reinforces the importance of safeguarding account information and monitoring statements closely.

Ohrnstein will enter the Illinois Department of Corrections to begin his term, with the court-ordered supervised release following completion of his sentence. The combination of incarceration and a judge-recommended treatment placement reflects a continuing local push to reduce repeat offenses by addressing addiction as part of the path back to the community.