the murder of angie samota then went cold. for years. ars after the crime, angie's friend sheila by then living in nashville, decided to act on something she had thought about for a while. >> i had felt angie around me for a while. i was doing homework for the bible study class, and all of a sudden, i look up and as you are sitting there, there was angie. i thought, it is time. i called the police. >> and said? >> i wanted to know about the angie samota case and who was working on it and if they weren't, what they reopen it? at that point told me, nobody in 20 years had called. not one single phone call. >> that prompted sheila to take a big step. she decided to get a private investigator's license to see if she could learn enough about crime and criminals to actually help solve angie's murder. at the least, she wanted dallas police to take her seriously. she earned her license in 2006, and called the police again. >> i said, i am a private investigator. you need to send me all the information owned angie samota 's case and i need to talk