But you could put the blame on the Christians for the Spanish Inquisition, the Crusades, etc.<quoted text>
But again,you can't put the blame for what he did on the Christian religion.
Christians are historically one of the most ruthless religious cults ever.
Take the KKK for example. They were explicitly Christian terrorist in ideology, basing their beliefs on a "religious foundation" in Christianity. The goals of the KKK included, from an early time on, an intent to "reestablish Protestant Christian values in America by any means possible," and believe that "Jesus was the first Klansman."
During the twentieth century, members of extremist groups such as the Army of God began executing attacks against abortion clinics and doctors across the United States. A number of terrorist attacks were attributed to individuals and groups with ties to the Christian Identity and Christian Patriot movements, including the Lambs of Christ.
Hutaree was a Christian militia group based in Adrian, Michigan. In 2010, after an FBI agent infiltrated the group, nine of its members were indicted by a federal grand jury in Detroit on charges of seditious conspiracy to use of improvised explosive devices, teaching the use of explosive materials, and possessing a firearm during a crime of violence. On March 28, 2012, the conspiracy charges were dismissed. Terrorism scholar Aref M. Al-Khattar has listed The Covenant, The Sword, and the Arm of the Lord, Defensive Action, The Freemen Community, and some "Christian militia" as groups that "can be placed under the category of far-right-wing terrorism" that "has a religious (Christian) component".
My point is - not all Christians are terrorists - but there are Christian terrorists, just as not all Muslims are terrorists.