He must be a total psychopath in the true sense of the word. But what reasons did he formulate in his head for these acts? What did he hope to achieve by this wicked carnage? I can't see his 'logic', was it political, personal vindictiveness, pleasure in killing? He must have planned it for weeks, so it wasn't an impulsive act. I find it completely chilling. The poor bereaved families, my heart aches for them.