Ralph Roscoe Sharick

On July 6, 1979, O'Neal and his accomplice, John E. Boggs, broke into the home of Doctor J. Larry Dowell in Strafford, Missouri. While burglarizing the home, Dowell's father-in-law, 78-year-old Ralph Roscoe Sharick, who lived in a trailer home behind the house, entered the property after hearing a disturbance. After confronting O'Neal and Boggs, Sharick was bound and placed into a chair in a closet. After stealing a saxophone, a guitar, and a couple of guns, O'Neal fired four shots with a .22 caliber gun into the closet, one of which fatally struck Sharick in the chest. His body was found later that night by Dowell when he returned home.^[5][6]

Boggs was captured and arrested two days later in Fort Worth, Texas.^[7] O'Neal remained a fugitive and became the subject of a multi-state manhunt. On August 25, 1979, he was captured in Enid, Oklahoma, after police received a tip from an area truck stop operator. He was found sleeping in a stolen truck and had been working in the Enid area.^[8] O'Neal was held without bail in the Greene County Jail. He was charged with capital murder, first-degree burglary, stealing, and armed criminal action.^[9] On August 27, O'Neal waived extradition and was returned to Springfield, Missouri.^[10]

O'Neal and Boggs both pleaded innocent to all charges.^[11] Each accused the other of pulling the trigger.^[5] On January 24, 1980, O'Neal was convicted of first-degree murder. On February 22, 1980, he was sentenced to life in prison by Circuit Judge James H. Keet. O'Neal was then transported to the Missouri State Penitentiary to serve his sentence.^[12] For his role in the crime, Boggs also received a life sentence. He was eventually granted parole but was barred from ever returning to Greene County.^[5]

Arthur Dade

While serving life in prison, O'Neal became a member of the white supremacist group, the Aryan Brotherhood,^[13] and was affiliated with Aryan Nations.^[14] On February 3, 1984, at noon, 33-year-old Arthur Dade, a black American man serving a twenty-two-year sentence at the Missouri State Penitentiary for two armed robbery convictions in 1979, was attacked by three white inmates.^[15] O'Neal, accompanied by fellow inmates Lloyd Schlup and Rodnie Stewart, attacked Dade in a prison hallway outside the prison dining hall. Dade had been released from his cell to eat his noon meal.^[16] Schlup allegedly held Dade's arms, while Stewart threw hot liquid in Dade's face to distract him.^[17] O'Neal then stabbed Dade to death with a homemade ice pick.^[18][19] Dade was stabbed four or five times in the chest and once in his right arm. He was pronounced dead by prison physicians twenty minutes later.^[20] Both Dade and O'Neal were residents of the Special Management Unit, which was a special prison inside the Missouri State Penitentiary. The unit was used for the confinement of 400 of the most troublesome inmates.^[21]

O'Neal, Schlup, and Stewart were each charged with capital murder in the killing of Dade. Prosecutors called the killing a well-planned "Aryan hit."^[22] O'Neal claimed that he killed Dade in self-defense.^[23] Ultimately, all three suspects were found guilty. O'Neal and Schlup were sentenced to death, while Stewart was sentenced to life in prison.^[17] Schlup's death sentence was overturned in 1999 following Schlup v. Delo, in which he was retried, and pleaded guilty to second degree murder to avoid being sentenced to death.^[24]