Okaloosa County death row inmate Frank Walls must prove his claims he is retarded if he wants to get off death row for two 1987 murders.
The Florida Supreme Court Thursday rejected several arguments attorneys for Walls had risen to get him off death row for the murders of Ed Alger and Anne Peterson.
He was convicted of shooting them to death during a burglary of their home.
Walls had argued he had ineffective counsel and claimed there were numerous errors in his trial and sentencing.
The State Supreme Court rejected those claims, but the Justices did agree Walls is entitled to an evidentiary hearing on his allegations that he is mentally retarded.
He could get off death row if he can prove those retardation claims.