Er, wasn't he murdered outright for making theological arguments?
"Giordano Bruno was executed in 1600 in Campo dei Fiori in Rome, following the verdict of heresy uttered by the Roman Inquisition. He was tried by the methods of compulsion common at that time, and the verdict, in accordance with the law at the time, was inevitably a harbinger of a terrible death.
Bruno was executed because he rejected the Christian foundations on which was based the whole society, the death of the heretic was considered an extreme form of defense. The ecclesiastical apparatus felt this action necessary for the survival of the company.
Bruno had nothing to do with rational thinking, he wasn't neither a champion of the world of science, nor of the philosophical. As explained by the historian of religions Mircea Eliade, "if Giordano Bruno greeted with much enthusiasm the discoveries of Copernicus, it was also because he believed that heliocentrism had a deep religious meaning and magic; when he was in England Bruno prophesied the imminent return of the magical religion of the ancient Egyptians which was described in the Asclepius. Bruno played the Copernican diagram as the hieroglyph of divine mysteries "(M. Eliade," History of beliefs and religious ideas ").
Bruno, as we have already had occasion to point out, was one of many wizards of the sixteenth century who believed in horoscopes and determinism of the stars, and he saw in heliocentrism not a scientific theory, an astronomical fact, but confirmation of his magical, astrological vision, which contemplated an animist heliolatry of Egyptian mold. The book "Giordano Bruno" (Fazi 2013), written by Bertrand Levergeois, has spoken recently of it, which calls him a "Kabbalist".
Bruno is the author of De vinculis, written after a lifetime of diving deep into the magical and occult traditions. With the volume, according to the review published in Italy today, aims to illustrate the techniques to manipulate individual and the masses, individuals as entire peoples, an art so black and lout that "to understand it and appreciate it," says Ioan P . Couliano in Eros and magic in the Renaissance (Basic Books, 1989), "one should be aware of the various trusts activity, the various ministries of propaganda. It would help to take a look in the manuals of schools of espionage. The magician of De vinculis typically is the prototype of the impersonal systems of mass media, the manipulation of global and indirect censorship, the prototype of the various brain trusts that exercise their occult control over the western masses."
I have a whole bunch of this stuff... Bruno was also a conspirator, a terrorist and the sum of the previously mentioned activities as wizard, heretic and denier of science and human reason.
Copernicus was never being put into trial, Nicola Cusano either and so many others that really did scientific and theological improvements.