Police began investigating man 5 months ago after Internet messages about Columbine . Score: 6 Suspect arrested Wednesday as he received the materials at his home , police say . Police arrested the man in Palma de Mallorca , not too far from the University of the Balearic Islands , where they say he planned his attack . In his personal diary , `` he showed a hatred for society , '' police say .
Police began investigating man 5 months ago after Internet messages about Columbine . Score: 6 Suspect arrested Wednesday as he received the materials at his home , police say . In his personal diary , `` he showed a hatred for society , '' police say .