The John List story is a disturbing one. He was a man who killed his entire family in their New Jersey home. He meticulously planned it, leaving behind a seemingly normal facade. He then disappeared for a long time. Eventually, he was caught due to the show 'America's Most Wanted' which led to his capture. It's a case that shows how someone can hide their dark side from those around them.
The John List story, also related to 'The Watcher', is quite chilling. John List murdered his family, and his actions were motivated by financial problems and a warped sense of religious righteousness. He thought that by killing his family, he was saving them from a worse fate. After the killings, he managed to start a new life under an assumed name until he was finally identified and brought to justice.