Which preposition to use with torturers

in Occurrences 2%

His resolution seems to depend on the knowledge which he possesses that he holds the fate of his torturer in his hands, and that the hour of his release will surely come.

at Occurrences 1%

It wasmen say who remember ita hysteria of blood and fanaticism; and precisely as an hysterical woman is called to her senses by a dash of cold water, so at the battle of Omdurman the land was reduced to sanity by applied death on such a scale as the murderers and the torturers at their most unbridled could scarcely have dreamed.

of Occurrences 1%

Fear for their scourge, mean villains have, Thou art the torturer of the brave.

with Occurrences 1%

He looked at his torturers with his eyes filled with blood; as if entreating mercy; but their brutality appeared to increase, and his moans each moment became more feeble.

Which preposition to use with  torturers