Sandra Lockett was charged in Ohio with aggravated murder with two aggravating specifications and with aggravated robbery after a pawnbroker was killed during a robbery in which she participated. The State's primary evidence came from the testimony of coparticipant Al Parker. Parker had pleaded guilty to murder in exchange for dismissal of the robbery charge and the specifications that would have exposed him to the death penalty.
Lockett had become acquainted with Parker and Nathan Earl Dew in New Jersey before they traveled together to her hometown of Akron, Ohio, where Parker and Dew needed money for their return trip. After Lockett rejected suggestions to pawn a ring, the group discussed robbing a grocery store and a furniture store. Lockett warned about the grocery operator's size and weapon and offered to retrieve a gun from her father's basement. When those stores closed, someone suggested robbing a pawnshop instead. Lockett's brother and Dew would enter pretending to pawn a ring. Parker would enter with bullets, load a gun, and rob the shop. Lockett would guide them to the location but remain outside because she knew the owner.
The next day the four gathered at a friend's apartment, confirmed they were proceeding with the plan, drove by the pawnshop several times, and parked. Parker entered the pawnshop, announced a stickup, and the gun discharged when the pawnbroker grabbed it, killing him. Parker returned to the waiting car where Lockett had the engine running. She took the gun, placed it in her purse, and later hid it under the taxicab seat when police stopped them. After release, Lockett hid Parker and Dew in the attic when police arrived at her home. Parker later testified against her at trial.
Lockett rejected three plea offers, including one to voluntary manslaughter and aggravated robbery carrying a twenty-five-year maximum and one to aggravated murder without specifications carrying a mandatory life sentence. At trial the defense presented no witnesses after Lockett followed her mother's advice not to testify. The court instructed the jury on aiding and abetting. It also instructed on the presumption that participants in a robbery acquiesce in whatever is reasonably necessary to accomplish it. This included that an intent to kill could be found if the robbery was reasonably likely to produce death. The jury convicted Lockett of aggravated murder with specifications.
Before sentencing the trial judge received a presentence report and psychiatric and psychological reports describing Lockett as a twenty-one-year-old with low-average or average intelligence, no psychosis or mental deficiency, a favorable prognosis for rehabilitation, a juvenile and adult record of only minor offenses, and progress in drug treatment at a clinic. The Ohio death penalty statute required the judge to impose death unless he found by a preponderance of the evidence that the victim induced or facilitated the offense, that the offender acted under duress, coercion, or strong provocation, or that the offense was primarily the product of psychosis or mental deficiency. After reviewing the reports the judge concluded none of the three statutory mitigating circumstances existed and sentenced Lockett to death. The Ohio Supreme Court affirmed the conviction and death sentence. The United States Supreme Court granted certiorari.
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