Rehearings Denied May 23, 1994.
James B. Gibson, Public Defender and Christopher S. Quarles, Asst. Public Defender, Daytona Beach, and Professor Victor L.
Streib, Cleveland State University, Cleveland, OH, for appellant.
Robert A. Butterworth, Atty. Gen. and Kellie A. Nielan, Asst. Atty. Gen., Daytona Beach, for appellee.
Howard Babb, Public Defender and Billy H. Nolas, Asst. Public Defender, and Julie D. Naylor, Ocala, amicus curiae for the Fifth Judicial Circuit Public Defender.
Mark Evan Olive, Tallahassee, amicus curiae for Children First Partners.
Jerome Allen appeals from a judgment imposing a sentence of death upon him. We have jurisdiction. 
On December 10, 1990, Stephen DuMont was robbed and wounded by a shotgun while working at a gas station in Titusville. He did not immediately lose consciousness and, before his death, was able to describe his assailants and the car they were driving. The automobile's description was similar to that of a car later reported stolen. The woman who owned the stolen car also reported that a light bulb on her porch had been unscrewed, and deputies were able to recover a fingerprint there.
Deputies found the stolen automobile early the next morning, stuck in the soft sand of an orange grove. A white male later identified as Brian Patrick Kennedy was lying in the front seat of the car. The steering column was damaged in a way that suggested hot-wiring. Two sets of footprints trailed off from the car into the orange grove. A canine unit tracked one set of footprints to a house where Eugene Roberson lived. The print from one of Roberson's fingers matched the one found at the porch where the light bulb had been unscrewed.
Further examination of the interior of the stolen vehicle revealed a palm print matching that of Jerome Allen, the defendant in the proceedings below. At the time of the murder, Allen was fifteen years of age.
On December 11, 1990, deputies questioned Allen after reading him his rights. At one point Allen asked what would happen to someone present at a robbery who did not actually pull the trigger.
Later, deputies placed Allen in a holding cell near Eugene Roberson. A video camera and hidden microphone recorded everything the two did and said. At this point, Roberson began telling Allen about his own interrogation. Roberson said he had told the deputies everything, including that he had pulled the trigger. Roberson said he told deputies that Allen had stolen the car. During the course of this conversation, both Allen and Roberson incriminated themselves and admitted their involvement in the murder.
Deputies later searched Allen's home. There they found shotgun shells, ammunition, and a sawed-off shotgun. However, experts could not say with certainty whether DuMont had been killed with that particular gun.
On March 18, 1991, Allen asked the trial court to rule that death was not a possible penalty because of Allen's age at the time of the murder. Allen also asked that he be given separate juries for the two phases of his trial, one to determine guilt, and the other to determine the penalty. All requests were denied.
Allen further moved to suppress statements he made to police. These were partially granted, though the judge declined to suppress the statements Allen had made to Roberson in the holding cell. The trial court also would not suppress the shotgun and shells seized at Allen's residence.
The case went to jury trial on July 8, 1991. The jury found Allen guilty of first-degree murder, armed robbery, possession of a short-barreled shotgun, and grand theft of an automobile.
The penalty phase began August 9, 1991. There, the State's chief witness was Brian Patrick Kennedy. Kennedy had turned state's evidence as part of a deal that, among other things, would mean he could not ...