CEDAR RAPIDS, Iowa (AP) -

A man convicted in the 1974 murder of a 17-year-old Iowan won't be prosecuted for the slaying of an 18-year-old who'd been with her.

The Gazette reports that 67-year-old Atwell Conner has been serving a life sentence since he was convicted of first-degree murder.

Prosecutors say Conner and George Nowlin picked up Maureen Connolly and Michael Servey after the two Cedar Rapids residents ran out of gas in March 1974. Nowlin was convicted of raping Connolly and fatally shooting her and Servey. Nowlin died in prison in 1989.

Conner was found guilty in the slaying of Connolly but was never tried for Servey's slaying.

He asked for dismissal of the charge in the Servey case, as did a Linn County prosecutor. The judge complied last month.