All suicide bombers are retarded, prima facie.
I have no time for murder but this is mistaken.
From Scientific American Mind:-
The belief that suicide bombers are poor, uneducated, disaffected or disturbed is contradicted by science. Marc Sageman, a forensic psychiatrist at the Foreign Policy Research Institute, found in a study of 400 Al Qaeda members that three quarters of his sample came from the upper or middle class. Moreover, he noted, "the vast majority--90 percent--came from caring, intact families. Sixty-three percent had gone to college, as compared with the 5-6 percent that's usual for the third world. These are the best and brightest of their societies in many ways." Nor were they sans employment and familial duties. "Far from having no family or job responsibilities, 73 percent were married and the vast majority had children.... Three quarters were professionals or semiprofessionals. They are engineers, architects and civil engineers, mostly scientists. Very few humanities are represented, and quite surprisingly very few had any background in religion."