This week, the state of Texas intends to execute Scott Panetti, who in 1992 shot dead his mother-in-law and father-in-law in front of his estranged wife and their three-year-old daughter. That Mr Panetti, now 56, committed the murders has never been in doubt; he admitted as much at his trial in 1995, when he defended himself while dressed in a purple cowboy outfit and attempted to call more than 200 witnesses, including John F Kennedy and Jesus Christ.
Long before it became clear from his courtroom antics, Mr Panetti had been diagnosed as severely mentally ill, which is why his impending lethal injection – due to be carried out on Wednesday – is opposed by not only his lawyers and a familiar collection of human rights groups, but also by an alliance of conservatives.
Among those protesting against Mr Panetti’s death sentence are more than 50 leading evangelical Christians, seven Methodist bishops, 10 Texas state politicians and the libertarian former presidential candidate Ron Paul. Mr Paul, a former Republican congressman who once backed the death penalty, wrote last month to Rick Perry, the Texas Governor, to appeal for clemency in the Panetti case. It is thought to be the first time he has publicly opposed an execution.