You've now had to Google search "Christian terrorists"to try to keep up this false equivalence. "The National Liberation Front of Tripura?" Is this supposed to be funny? Sorry if I'm missing the sarcasm.
There is no theological basis for wanton murder in Christianity. There is no basis in Hinduism, Jainism, Judaism, Sikhism, et cetera. Unfortunately, there is a basis and justification within Islam. This is reflected in the poll numbers linked below. When you go beyond Russia and the former Soviet-bloc countries, observe some of the levels of support for death to apostates and other positions held by the so-called "extremists." Is the argument that, "Well, most Muslims don't blow themselves and others up," therefore this is really about other issues or is true of religions in general? Is that the argument? Most Germans weren't out killing Jews during the Holocaust. Did their silence, acquiescence or enthusiastic support all help the cause? Of course. When 30% or more...tens of millions... of Muslims state that they endorse death to apostates, you may want to take them at their word. That isn't a small minority, and as you will see in many Muslim-dominant countries, it's a strong majority.
But, yeah, some Christians do murder in the name of Christ and they have approximately 0.001% support for their beliefs and actions from the Christian population.
Link: http://www.pewforum.org/2013/04/30/the-worlds-muslims-religion-politics-society-beliefs-about-sharia/