when adolf eichmann went on trial, he said i was just doing my job.one reporter at that trial called that the banality of evil. neuroscientist david eagle studies this phenomenon. you say reasonable people in a situation may become cruel. >> this sort of thing happens all the time where people will turn on their unarmed and defenseless neighbors and murder them, and so this led scholars to figure out is there something wrong with millions of people's brains in terms of disposition or situational forces lead people to do these things. john: what they concluded is the power of the situation and other people was very powerful. one fun example of it is you see this card here with this line on it. how long is the line? which one of these three is it the same length as. tell us what happened, david? >> an experiment by solomon ash after the holocaust. he wanted to figure out how people are influenced in opinions by other people. the other people in the room with you were all shills, and say the answer the nonequivalent was the answer. most people will chang

bruener who was said to have been adolf eichmann and right-hand man during the holocaust is believed died at least four years ago in syria. a leading nazi hunter says he was 98 years old and may have advised the syrian government. france tried him in absentia in 1954 and sentenced him to die for sending more than 128,000 jews to death camps. >>> well, a coroner in the u.s. state of ohio says the brain of an ohio state university football player will likely be tested after police say he killed himself. the family of kosta karageorge says he had a history of concussions. his body was found in a dumpster sunday. police believe the 22-year-old shot himself. his mother says he texted her last week saying he was sorry if he was an embarrassment and mentioning concussion problems. >>> all right, sony pictures suspects one of its comedies may have led to a massive hacking. but what it costs the studio is no laughing matter. a close look at this after the break. stay with us. >>> a programming note for our international viewers. our chief correspondent christiane amanpour will be at the vatic