Some conversions take a lifetime.

For the Rev. Carroll "Bud" Pickett, it took 95.

Pickett, a Presbyterian minister, was the death house chaplain at the state penitentiary in Huntsville, Texas, where, from 1982 to 1995, he accompanied 95 inmates to their executions.

"Even to this day, I don't understand how I got where I am," Pickett says in the first moments "At the...