Where these charges or was this suspect ever convicted of these crimes? In the 80s, it would’ve been too early for widespread DNA testing. If this person has been convicted of a crime more recently, their DNA would have been taken. Perhaps now this family would have less political power in town. The fact that they have a DNA, and suspects, would lead one to believe that that DNA have been tested against those suspects. But perhaps back then that family was too powerful. Maybe not now?