During his imprisonment, he prepared a document confessing to his crimes and also provided evidence that led to the resignation or impeachment of additional justices for financial crimes while serving on the court, as well as causing the Oklahoma Legislature to reform the selection of Supreme Court justices.
[1] Corn was accused of accepting a $150,000 bribe to affect the outcome of the so-called Selected Investment Corporation Case.
[b] Trial judge, Roy Harper, denied a new-trial motion by the defense lawyer, telling reporters that, "...I've never tried a tax case that was simpler” or “seen one with less actual defense.”[2] Corn changed his plea from "not guilty" to "nolo contendere" after U.S. Attorney A.
B. Potter announced in court that he had a witness that could testify that Corn was involved in a $150,000 payoff from an unnamed corporation in 1957.
[3] While serving his 18-month sentence in the Springfield, Missouri federal prison, Corn decided to prepare an affidavit detailing his involvement in the bribery and income tax evasion schemes.
[d] It was then turned over to federal Judge Stephen Chandler, who shared it with the most recently elected Oklahoma Supreme Court Justice, William Berry, who got Representative G. T. Blankenship to present it to the state legislature.