The Christian pastor calling for the killing of gays, may be following the true historical Jesus. Often you find cults and religions move away from the original teachings of the founders, as in Mormonism, where most no longer support the polygamous views of Joseph Smith and Brigham Young.
The earliest gospel, Mark, shows Jesus agreeing with the killing of children who do not honor their parents. Mark holds the most weight in light of the historical method, because it's the closest to the time Jesus lived. Some try to quote John 8, where he saves the unfaithful woman from being stoned, but scholars, across the board, agree this was a later addition to the texts. Also, in Matthew and Luke, you find Jesus changing the law, which seems to contradict his words in Mark, but remember, these gospels came later and were written by different men, who may have not been faithful to the Jesus of Mark. Actually, we KNOW they were not faithful to the Jesus of Mark. I can go into more detail if called upon to do so.
Jesus said ,"You have let go of the commands of God and are holding on to human traditions.”
And he continued, “You set aside the commands of God in order to observe your own traditions! For Moses said, ‘Honor your father and mother,’ and, ‘Anyone who curses their father or mother is to be put to death.’ But you say that if anyone declares that what might have been used to help their father or mother is devoted to God, then they no longer have to do anything for their father or mother. Thus you void the word of God by your tradition that you have handed down. And you do many things like that."
Some of the earliest texts we have also show an angry Jesus in Mark 1:41, where he in anger heals a leper and then casts him out. He seems to be busy and some leper comes in, Jesus being angry heals him, and sends him out immediately! For scholarly back up of this, read pages 133-139 of "Misquoting Jesus: The Story of Who Changed the Bible and Why," Professor Bart D. Ehrman, Professor of New Testament Studies, North Carolina, Chapel Hill. Later, he flips tables and whips people with cords.
We find Jesus always evolving. In Mark he seems like an apocalyptic prophet, by John he was God before the world was. He was never called God in Mark, the earliest, which never mentions a virgin birth. Jesus's family, in Mark 3, comes to take him home, as if a madman. If they knew he was born of a virgin they wouldn't have done that. The virgin birth story comes later. Even Paul's epistles, which predate Matthew and Luke never mention a virgin birth, and Paul states in Acts 13 that Jesus became the Son of God at his resurrection; today I have begotten You!
I could go on and on showing the evolution of Jesus by comparing gospel to gospel. But I think I said enough, for now. Point is, the original historical Jesus may have supported the killing of homosexuals.