Fewer than half of Americans now believe the death penalty is fairly applied in the United States, according to the 2018 annual Gallup crime poll of U.S. adults, conducted October 1-10. The 49% of Americans who said they believed the death penalty was "applied fairly" was the lowest Gallup has ever recorded since it first included the question in its crime poll in 2000. The percentage of U.S. adults who said they believe the death penalty is unfairly applied rose to 45%, the highest since Gallup began asking the question, and the four-percentage-point difference between the two responses was the smallest in the history of Gallup's polling.

The poll also found that, even as the number of new death sentences are near historic lows, the percentage of Americans saying that the death penalty is imposed too often continued to rise and the percentage saying it is not imposed enough continued to decline. 57% of U.S. adults said the death penalty was imposed "too often" (29%) or "about the right amount" (28%). In 2010, just 18% said the death penalty was imposed too often. While a plurality of 37% said the death penalty was not imposed enough, that figure was down 16% from the 53% level who in 2005 said it was not imposed enough. Gallup analyst Justin McCarthy wrote that "as executions in the U.S. have decreased along with the generally sinking crime rate, Americans have become more likely to say capital punishment is unfairly applied and that it is imposed too frequently." 

Gallup measured overall support for capital punishment at 56%, which McCarthy described as "similar to last year's 55%." 2017, he said, "marked the lowest level of support for the practice since 1972." He said "support for capital punishment ... has been trending downward since peaking at 80% in the mid-1990s during a high point in the violent crime rate." The poll measured opposition to the death penalty at 41%, the same as last year's 45-year high. A national Pew Reseach Center poll released in June 2018 reported support for the death penalty at 54% and opposition at 39%. A 2017 study reported that murders in the 37 states that authorized the death penalty in 1994 declined by 35.4% between then and 2014, but that death sentences declined by 76.5%—more than double that rate—over the same time frame. 

(Justin McCarthy, New Low of 49% in U.S. Say Death Penalty Applied Fairly, Gallup News, October 22, 2018; Gallup, Americans' Views on the Death Penalty, 2018 (Trends), October 2018.) See Public Opinion and Murder Rates.

The Texas Court of Criminal Appeals on October 19, 2018 stayed the execution of Kwame Rockwell (pictured), a severely mentally ill death-row prisoner suffering from schizophrenia, who had been scheduled to die on October 24. The court found that Rockwell had raised “substantial doubt that he is not competent to be executed” and reversed a ruling by the Tarrant County District Court that had rejected Rockwell’s competency claim without an evidentiary hearing and without providing funds for him to obtain a competency evaluation. The appeals court ordered the trial court to appoint “at least two mental-health experts” to evaluate Rockwell’s competency. On October 16, Rockwell’s lawyers had appealed the Tarrant County order arguing that the trial court had abused its discretion in rejecting his competency claim The appeal argued that Rockwell “does not understand he is to be executed,” “has no understanding that he was convicted of capital murder and sentenced to death,” and “does not comprehend that he has been incarcerated on death row since 2012 or even that he is presently incarcerated in a Texas prison.”

The U.S. Supreme Court ruled in Ford v. Wainwright (1986) that the Eighth Amendment prohibits the execution of prisoners who have become “insane”—which the Court defined as being “unaware of the punishment they are about to suffer and why they are to suffer it.” In 2007, in the Texas case of Panetti v. Quarterman, the Court explained that a prisoner whose delusions prevent him from having a “rational understanding” of these circumstances is incompetent to be executed. A neuropsychologist who examined Rockwell in July reported that Rockwell said he saw snakes and demons that were inside of him, appeared to be hearing voices, and, in response to a question about his name, said “my name is God.” The doctor’s affidavit said Rockwell “does not understand or appreciate where he is, the nature of his charges, why he is in prison, or the nature of his punishment.” Rockwell’s lawyers also presented the court with evidence of his significant family history of psychotic illness, including twelve family members across three generations of his family with mental illness diagnoses, and Rockwell’s own mental illness in childhood and as an adult. Citing prison records, the appeal states: “Rockwell has consistently experienced intense hallucinations and auditory delusions, despite spending the majority of his sentence on four or more antipsychotic medications concurrently. He is haunted by snakes and demons. No medications have been able to eliminate his hallucinations or delusions.”

The U.S. Supreme Court has never categorically excluded people with serious mental illness from being sentenced to death or executed. A 2014 poll found that Americans by a two-to-one margin oppose executing people with mental illness. Several states have recently considered, but not adopted, legislation to bar the death penalty for people with severe mental illnesses. Rockwell’s trial lawyer did not present to the jury mitigating evidence of Rockwell’s schizophrenia or his family’s history of psychotic mental illness. Nonetheless, the Texas state and federal courts denied Rockwell’s claim that he had been provided ineffective representation at sentencing. In an opinion piece for Pacific Standard written before the Texas Court of Appeals granted the stay, David M. Perry compared the courts’ treatment of Rockwell’s case with the recent stay of execution granted to fellow Texas prisoner Juan Segundo. Segundo was granted a stay so the Tarrant County court could reconsider his claim of intellectual disability after the Supreme Court had ruled that the standard Texas had previously applied unconstitutionally risked that some people with intellectual disability would still be executed. “America still doesn't have clear protections for people with severe mental illness,” Perry explains. “These two cases in Texas remind us of the unfortunate diagnostic limitations that protect only some people with disabilities from the death penalty.”

(David M. Perry, KWAME ROCKWELL WILL BE THE NEXT DISABLED PERSON EXECUTED BY AMERICA, Pacific Standard, October 17, 2018; Keri Blakinger, Execution dates set for two convicted killers from Tarrant County, Houston Chronicle, May 16, 2018.) Read the Texas Court of Appeals stay order in Rockwell v. State. See Mental Illness.