From The Fabulous Frontier, 1846-1912. (The entire text below is a single large paragraph in that book, so line breaks have been added for readability.)
On August 2, 1875, Robert Casey was shot and killed by William Wilson in Lincoln with a bullet fired from a Winchester rifle. Wilson was tried, convicted by a jury and sentenced to be hanged.
On December 10, 1875, the appointed day, a large crowd gathered in the Lincoln* jail yard to witness the hanging. Ash Upson** was present as a representative of the press, but left shortly after the trap was sprung, probably to get a drink.
After being suspended by a rope for nine and one-half minutes by the Sheriff’s watch, Wilson’s body was taken down from the scaffold and placed in the coffin.
Spectators nudged the Sheriff and told him that Wilson was not yet dead.
Red-faced and embarrassed the Sheriff and several helpers lifted William Wilson from his wooden coffin, escorted him once more to the scaffold. The rope was again tied around the condemned man’s neck and he was suspended for an additional twenty minutes, at the end of which time there was not much doubt that the demands of the law had been satisfied.
Father Antonio Lamy, twenty-eight years old, a native of France, a nephew of Archbishop John B. Lamy of Santa Fe, had been a reluctant witness to the hanging … Padre Lamy had been in Lincoln on a missionary tour. He called at the jail to offer spiritual consolation to William Wilson, soon to be hanged. Wilson prepared himself for death under Father Lamy’s direction and accepted his offer of company to the scaffold.
The hanging and rehanging of Wilson proved too much for the frail young man of God.
Rather desperately ill, suffering from chills and high temperature, the Padre insisted on returning on horseback to Manzano a few days after William Wilson had been hanged. Arriving in Manzano, Father Lamy’s condition rapidly became worse. He died there on February 6, 1876.
The remains of the priest were buried under the floor of the parish church at Manzano. The story of Padre Lamy’s death has for many years been kept alive in the Manzano community. His grave in the church has long been a silent sermon in opposition to the brutality of capital punishment.
* Lincoln was a little hit and miss with its necktie parties: it’s also the town where Billy the Kid escaped a hanging.