Damning evidence, some from the demon's own mouth:
During Servetus' trial, John Calvin wrote, "I hope that the verdict will call for the death penalty". Walter Nigg, The Heretics, (Alfred A Knopf, Inc.), p.328
"Calvin had him (Servetus) arrested as a heretic. Convicted and burned to death." The Wycliffe Biographical Dictionary of the Church, p.366
When Servetus mentioned that he would come to Geneva, "Espeville" (Calvin) wrote a letter to Farel on 13 February 1546 noting that if Servetus were to come, he would not assure him safe conduct: "for if he came, as far as my authority goes, I would not let him leave alive". Cottret 2000, pp. 216–217; Parker 2006, pp. 147–148; Levy, Leonard W. (1995), Blasphemy: Verbal offense Against the Sacred from Moses to Salman Rushdie, p. 65
"Some scholars claim that Calvin and other ministers asked that he be beheaded instead of burnt, knowing that burning at the stake was the only legal recourse. Others argue that Calvin himself ordered Servetus to be burned with green wood so the suffering would be prolonged, and that Servetus was the one who requested a more merciful beheading. This plea was refused and on 27 October, Servetus was burnt alive at the Plateau of Champel at the edge of Geneva."