A man who once told a judge he killed a Kentucky social worker now says he didn't do it.
Police arrested Christopher Luttrell and his girlfriend Renee Terrell for the 2006 murder of Boni Frederick.
Now just four days after pleading guilty, Luttrell is changing his story.
“I remember her walking back with it in her hand. She tried to get me to finish her off; I said ‘uh-uh’,” says Luttrell.
Commonwealth's Attorney Bill Markwell says that's not what happened.
Markwell says Luttrell was waiting in a closet for Frederick, then he and Terrell attacked the social worker with knives and a skillet.
Renee Terrell's trial begins in September.