First off, it seems that he was already mentally ill way before that murder. [quote]He told the court he is haunted by voices telling him how to behave and said they had told him he was "an angel of Jesus Christ who is going to create a new Jerusalem". He added: "They direct how I act, sometimes they say kill, fight, hit, pray."[/quote] "Beloved, believe not every spirit, but try the spirits whether they are of God: because many false prophets are gone out into the world. 1 John 4:1" I don't think an angel of Jesus would tell you to behead and otherwise murder a woman you don't know at all. [quote]Deyanov also said he had been using crack cocaine and LSD before his arrest, and had no memory of living in Tenerife.[/quote]There's also this. I think most of the arguing over this comes over whether the murderer/terrorist kills people of their own will and deliberately, with the malicious intent to end life, or if they are someone who was both mentally ill and who used drugs, and said the voices in his head told him to, without much control over his actions. I propose a solution: those who, with their own willpower and in control of their actions, murder people in the name of god (though the Christian God told us "But I say unto you, Love your enemies, bless them that curse you, do good to them that hate you... Matt.5:44", which is about the opposite of kill and murder) should get more severe punishments than someone who was mentally ill and was on drugs, and didn't have a much control over his actions, though they both should still be punished for murder.