I think this may be the absolute worst episode of LOCI. I was really put off by almost everything.
Here are problems I had with the episode, but not in any particular order.
1) The music. It was over the top creepy and intrusive
2) The detective from Chicago. That actor has played a great villain many times. He he was bland and forgettable.
3) The ease with which the perpetrator was found. That was a big flaw. The plot device of the letter was too cute by half. The expected suspense and drama involved with finding the criminal was almost totally absent.
4) The emphasis on knowing whether the Chicago case was decided correctly rang false to me.
5) The killer was not believable - - at all. Here was a man who had all the trappings of a normal life, who loved his son and daughter, and yet he's a serial killer? I don't buy it at all. Compare this episode with the one featuring a cannibal murderer. There you really believed in the psychology. Here it's a complete failure.
I like some episodes better than others, but I can't think of another where I regret watching. Stay away. This is far beneath the standards for LOCI.