Does true crime have a supply problem?

The death of a cultural moment

Last month I watched some of the FX docuseries The Most Dangerous Animal of All, which follows a man, Gary L. Stewart, who believes his now-deceased biological father Earl van Best Jr was the Zodiac killer. Though based on Stewart’s book of the same name, which he wrote with journalist Susan Mustafa, the doco becomes less about his theory — which is wid…