case would never be solved. >> your raw instinct is you want to find them yourself. and pulverize them. >> the only real evidence investigators had were the composite drawings. >> it was clear that the people who made this sketch that gave our sketch artist the information, these were going to be great witnesses. >> so rachael's father turned his grief into action. he helped raise $100,000 reward for anyone who could provide information leading to the arrest and conviction of the killers. some of that money was used to put the composite drawings of the suspects on billboards around the area. >> i had all the billboards put out around, just circling all the entries and exits to clear lake so you couldn't in or out without seeing those pictures. >> we had a lot of attention and we got a lot of phone calls. >> but the most important call