Wisconsin man’s case raised the competency standard for execution. He died at 67 on death row.

Panetti died from acute hypoxic respiratory failure on Texas’ death row the morning of May 26, the macabre space he called home for more than 30 years. There, he was known as The Preacher, according to his longtime lawyer, Greg Wiercioch, now a clinical professor at the University of Wisconsin Law School. Panetti was 67 years old. He had four children.