>> the word erie was very fitting that day. >> lucy, was it chilling for you to walk into this place? >> yes, especially the office where the three gentlemen were. it was much smaller in person than i felt it was in the pictures. and just being in there, i wanted to get out. >> there they saw the ceiling tile that had been moved, where serrano had been accused of hiding a gun used in the murders. but as for a supposedly tell-tale dusty footprint on a chair beneath that tile, some jurors dismissed it as evidence. >> it shouldn't make no difference whatsoever. >> but what preoccupied jurors most was the tight time line of the theory of the crime. just ten hours for serrano to fly, drive, murder, fly again and be back in atlanta and be photographed by a hotel security camera. a complicated scheme, wasn't it? >> it was crazy. it was only ten hours. >> we all travel, we know it's a nightmare getting in and out of airports. did anybody have trouble with these whole orchestrated events? anybody doubt that it could be done?