“Perfect crime”
A few years ago we had a PHD student at the University of Illinois who figured out he would never make it big in his field and decided to do the “Perfect Crime”. He picked up a Chinese student newly in the country, sliced her up and put her in the garbage. It was hard to find him until he mentioned his activity to a girl friend. They sent him away for life.
That’s certainly creepy.
BTW, I think the FBI profilers said the Idaho killer may have been an “incel” who had been rejected by one of the girls. Sometimes even the FBI gets something right.