A former Ohio police officer convicted of killing his pregnant girlfriend and their unborn daughter is asking the U.S. Supreme Court for a new trial.

Lawyers for Bobby Cutts Jr. filed an appeal with the nation's highest court earlier this month. The Ohio Supreme Court declined to review Cutts' case.

The former Canton patrolman is serving a life sentence in the killings of Jessie Davis and the nearly full-term fetus she was carrying. Her disappearance in 2007 prompted a huge search that drew national attention.

Cutts' attorneys say the trial should have been moved because of all the publicity. Defense lawyer Fernando Mack says the Supreme Court should review the case because it has "uniqueness."