Authorities say they believe a death row inmate who says he killed a reporter, but they do not plan to prosecute him.

"The various statements he made in his confession convinced us he is in fact the responsible party," Robert Dakopolos, an assistant Jackson County prosecutor.Anthony Joe LaRette, 37, of Topeka, Kan., said in a statement that he killed Beverly Wortmann, a reporter for the Jackson County Sentinel-Tribune in Blue Springs, in 1977. He also has been linked to slayings of two other young women.

LaRette has been sentenced to death for the 1980 slaying of 18-year-old Mary Fleming of St. Charles.

Dakopolos said LaRette's statement said he was paid to kill Wortmann, 24, who was stabbed to death.

"He gave us absolutely no means of identifying who this second person might be," Dakopolos said Friday. The prosecutor declined to say how much LaRette claimed to have been paid.