2 adjectives to describe decapitators

That done, he filled the vacancies with political troughsmen; and with these as assistant decapitators the major passed rapidly down the line, striking off heads in daily batches until the over-flow of the Bucks political following was provided for on the railroad's pay-rolls to the wife's cousin's nephew.

"By the prayers of San Gennaro! which are known to stop running and melted lava, I would rather thou should'st undertake that office than I. Yonder young soldier is an honorable decapitator, and it is a pleasure to be his companion on a journey; for, no doubt, some six or eight of the saints are speaking in his behalf daily.

2 adjectives to describe  decapitators