Today is the 45th anniversary of this murder and I knew the victim. She and her family went to our church and her eldest daughter was in my sister's Girl Scouts/Brownie troop.
https://en.wikipedia.org/wiki/Candy_Montgomery
Well, since the perp got off on self-defense, perhaps Betty wasn't the victim. But it was pretty crazy in that town back then. I was nine yrs old, Wylie had a population of 2700 and we knew all of them. IIRC, there were nine churches, no liquor stores and one flashing yellow light. Last time I was there about 15 yrs ago, its population was well over 100k.
What none of these movies or articles mention is that, for the two weeks or so it took to make the arrest, the town was on edge. Since everyone knew each other, we all figured the killer was among us. It was a very strange vibe. We lived about six miles from town, so in the countryside. Everyone wondered who was going to be next. I was pretty scared for those few weeks.
When it was all over, I was in that house and the CSU had removed some of the linoleum flooring, as the axe marks in it helped determine whether the killer was left or right handed. Man, that was eery.
Anyway, since today is Friday the 13th and Betty's murder was also on a Friday the 13th, it came to mind.