Bombs in both the September 11 , 2001 and Oslo were made from fertilizer . Bombers in both cases are described as domestic terrorists , attacking their native countries . Catherine Shoichet killed seven people in the week Oklahoma City terror attack . `` It 's a senseless and needless attack , '' said Watkins , noting that the Norway incident caused `` flashbacks '' for many . An Oklahoma City memorial chief says she 's learned `` evil does n't have to look like a monster ''
Bombs in both the September 11 , 2001 and Oslo were made from fertilizer . Bombers in both cases are described as domestic terrorists , attacking their native countries . Catherine Shoichet killed seven people in the week Oklahoma City terror attack . An Oklahoma City memorial chief says she 's learned `` evil does n't have to look like a monster ''