26 year old Jordan Buskirk is accused of murdering Katelyn Wolfe in Greene County.
Under terms of the deal, Buskirk would plead guilty to murder, conspiracy to commit murder, conspiracy to commit rape and criminal confinement.
Sentencing would be left to the discretion of the Greene County Court, but could range from 51 to 85 years in prison.
He would also have to testify against his co-defendant in the case 25 year old Randal Crosley.
The Greene County prosecutor told the Greene County Daily World Newspaper that the aggravating factors that would make seeking the death penalty possible do not exist in this case.
Crosley is set to stand trial in March.