right there in the file was a wholesale dump of material from liz golyar's cell phone. hen in the office one day, pure coincidence. >> i was in the hallway talking with a county attorney, and another investigator was walking down the hall with liz to his office. >> wow. >> and to me, it was like i saw a famous person. and i knew everything about her. and she was there to file a harassment report. >> but this was odd, her complaint was not against cari, it was someone else. >> amy flora, that's the mother of dave's children. >> wait, amy? not cari? first detective avis did a psychic double take. and then he asked if he could be the want to interview liz. >> who is your ex boyfriend? >> dave kroupa. >> dave cooper? >> k - r - o - u - p - a >> and he has kids with amy flora? >> liz told detective avis that her on again off again relationship with davis off again. but ever since their most recent split, dave's ex amy had been stalking her on facebook, and she was very worried because -- >> not even two days after you broke up, his apartment is broken into and his gun was sto