That might not happen in Texas, but the risk should concern people who support capital punishment.
Jonathan Green was put to death Wednesday for the 2000 murder of a 12-year-old girl, but his lawyers maintained until the end that their client was mentally ill and thus unsuitable for execution.
Texas put Bobby Lee Hines to death Wednesday for the 1991 slaying of Michelle Haupt inside her Carrollton apartment.
Robert Wayne Harris, who was convicted of killing five people at a car wash in Irving, was executed by Texas after the U.S. Supreme Court declined to stay his execution.
Marvin Wilson, an inmate with an IQ of 61 and the reasoning skills of a grade school student, was the latest to die in the Huntsville death chamber.
Mario Swain, convicted of the murder of a Longview woman, had a history of stalking and assault.
The U.S. Supreme Court, which had stayed Cleve Foster’s execution three times in the last year, declined to intervene Tuesday.
Yokamon Hearn was also the first person in Texas to be executed with the new single-ingredient lethal formula, pentobarbital.