>> i wanted to know about the angela samota case, who was working on it, if they were working on it,nd if they weren't, would they reopen it. at that point told me nobody in 20 years had called. not one single phone call. >> reporter: that prompted sheilah 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 very least, she wanted dallas police to take her seriously. she earned her license in 2006 and called the police again. >> i said, i'm a private investigator, you need to send me all the information on angela samota's case, and i need talk to the detective, and i need you to tell me what has been done, what hasn't been done, where's the information, where's the evidence, all of that. wasn't well received at all. >> reporter: but they met with you to talk about the case. >> no. no. >> reporter: they gave you the evidence. >> no. no. >> reporter: they gave you regular votes? >> no. -- regular votes? >> no, no, none of it. >> reporter: doesn't sound like it hel