In 1986, the U.S. Supreme Court held that it is unconstitutional to execute somebody who is clearly insane. But the court has never actually said what constitutes insanity for the purpose of determining whether somebody is competent to be executed.
Until now. The court will hear arguments Wednesday over whether a mentally ill Texas death row inmate should be executed for gunning down his in-laws in 1992 in front of his estranged wife and their 3-year-old daughter. Panetti v. Quarterman, No. 06-6407.
The inmate, 48-year-old Scott Panetti, apparently understands on some level that the state intends to execute him for the murder of his wife's parents, according to mental health experts who evaluated him. But he also apparently suffers from the delusional belief that he's being executed as part of a grand conspiracy by the "forces of evil" to prevent him from preaching the gospel.
...
Panetti was not only found competent to stand trial, he was also allowed to represent himself. He pleaded not guilty by reason of insanity. And he went about trying to prove it at his trial, where he wore a purple cowboy outfit; rambled incoherently; peppered his remarks with phrases such as "pardner," "buckaroo" and "hosses"; badgered the judge and the prosecutor; asked incomprehensible questions of the witnesses; made bizarre comments to the jury; and tried to subpoena Jesus, the pope and John F. Kennedy, among others.
Full article here
For some excerpts of the trial transcript and other observations on Panetti's mental competence,
click here (.pdf)
Apparently, the state of Texas's argument is that Panetti understands the connection between his death sentence and the killings, and that's all that the constitution requires. It also has argued that practically everyone on death row is mentally ill in some respect, so a ruling in favor of Panetti would open the floodgates to thousands of inmate appeals challenging their convictions (listen to Texas's side of the story on this NPR report
here).
It's cases like this that highlight the gruesome absurdities of the death penalty. Why should anyone care, after all, if the prisoner can understand why he is going to be put to death? If the goal of capital punishment is deterrence, then we need only worry about the effect of the execution on others, not on the prisoner. On the other hand, if the goal is retribution, then why not be satisfied with the prisoner's death? Why is it necessary that he also
understand his punishment?