>> all of a sudden, you start seeing footprints appearing in the dark. it's almost like you're walking in the footsteps of the person. and the hair stands up on the back of your neck, because at that moment, you're seeing the actual direction that this assailant had walked. >> and investigators found other evidence to corroborate janet's story. the screen in the dining room window had been cut, the likely point of entry. under the master bedroom window, in the soft dirt, were some bare footprints from an individual with a size 11 foot. and investigators discovered a faint fabric impression in the dirt underneath the window. >> it's a pretty good detective work, i think. you could tell that they see a buttocks imprint on the ground beneath the window that looked as though that person had spent quite a lot of time under that window. >> from that window, the killer had a clear sight line into the