>> we brought jacob, todd, and the neighbor down to the identification bureau and took footprints from all three of them. >> todd hale's footprints didn't match. jacob hadley's footprints didn't match either. >> then there was carlos. it struck me odd as i inked carlos' feet and asked him to step down from the chair on to the paper, and he was reluctant to do that. >> carlos walked down one side of the paper and then walked over the footprints he just made. >> something's just not right here. it wasn't hard instructions to understand and follow. it was almost like he was trying to obliterate his footprints. >> finally technicians got usable prints, and they were compared to the bloody footprints in christina's bathroom. >> this is our guy. it's his footprint. >> carlos' palm print was also a