>> reporter: as police gathered evidence, bit by bit, asking around about paul, one of them noticed something a little odd. paul told a friend, also a policeman, by the way, two slightly different stories about his whereabouts the day of the fire. first conversation, day of the fire, reported the cop friend, paul said he wasn't home all day. then, second conversation, next day, paul said he stopped briefly at home en route to his hookah cafe. as we say, odd. but people's memories can be tricky. was that one little difference enough to add up to suspicion of murder? police apparently thought so, especially once they added that to the rest of what they discovered. paul was arrested. >> i'm going to wait to talk to my attorney. >> what's that? >> i will wait for my attorney. >> okay. >> they charged paul zumot with arson and murder, which struck some observers as strange.