Trisha Tower, 26, pleaded guilty as charged to first-degree felony obstruction of justice for helping inmate Curtis Michael Allgier following the shooting.
The crime is punishable by up to life in prison. But Tower will be sentenced to probation and 12 months in jail, according to an agreement with prosecutors that was ratified by 3rd District Judge Robin Reese. Sentencing is set for March 24.
As part of her plea deal, Tower agreed to have no contact with Allgier, who was a former pen pal and roommate.
Allgier, 28, is charged with capital murder and faces the possibility of execution for allegedly shooting Corrections Officer Stephen Anderson with the officer's gun on June 25.
Allgier, who had been brought to the hospital because of back problems, carjacked a vehicle and drove to Tower's home. Allgier came in the back door holding a gun and told Tower he had just killed a guard. He quickly changed out of his bright orange prison jumpsuit, grabbed some cigarettes and left, according to Tower's defense attorney, Clayton Simms.
"He doesn't ask, he just changes clothes," Simms said after the hearing. "It was not pre-planned. She had no knowledge [of the escape attempt] ahead of time."
Tower - fearful that any association with Allgier could result in her two children being taken away by child protection authorities - panicked, Simms said.
She put the jumpsuit into a plastic bag and gave it to her brother, Russell Tower, to hide, according to testimony at a September preliminary hearing.
Trisha Tower then lied to police for four hours about her involvement, said prosecutor Vincent Meister.
Simms, however, has noted that Tower's actions did not hinder or delay the investigation or the capture of Allgier, who was arrested 45 minutes after the shooting.
Allgier - a heavily tattooed white supremacist - has a preliminary hearing scheduled for Feb. 20.
In addition to capital murder, Allgier is charged with seven other felonies.
