It is debatable whether blind faith is truly faith at all. Faith is the perceptive gray area where scientific facts meet an individual's experiential truths - the extreme of the former is left feeling in the dark whereas the latter is caught blinded by the light. By proper scientific method, it is intellectually dishonest for me to declare the existence of God with utmost certainty, but to my individual spirit, I would be intellectually dishonest to deny the existence of God even for a second. This leaves the best of both worlds, as the believer is called to be able to give reasons for his faith, a deviation from mere fantasy.
If I were to believe in God enough to call him a murderer, then I might also believe enough that he, as a spirit, exists beyond death; and therefore only he could do it righteously. For the physical being kills a man and hatefully sends him away, whereas God, the spiritual being, kills a man and lovingly draws him nigh.