jordan: the morning of january 15, 1974, was just a regular school day in the otero household until the unthinkable happens. an intruder enters their home and commits atrocities against this innocent family. i saw my parent s bodies it just felt like somebody had ripped my chest wide open and pulled my heart out. jordan: and investigators are trying to piece together the evidence and find the killer when, in april, another brutal killing. otis: when the crime-scene investigators found the dna stain on the female clothing, they collected it, but there was no dna testing at that time. and so they packaged it properly, sealed it up, and put it with the rest of the evidence. and wichita instantly changed. it wasn t an innocent city anymore. killer breaks in. he s lying in wait. and he s thinking he will be able to subdue her and do whatever he wants and fill his fantasy.