Jonathan Mann can’t close the worst chapter of his life. In 2017, his father was murdered by a formerly incarcerated person he had invited into his home. In 2019, Mann found himself troubled by the death sentence handed to his father’s killer, Thomas Knuff. Then, in 2021, when Mann believed the media frenzy around his father’s death had finally fizzled out, he received an e-mail from a producer.
“It froze me like a deer in headlights,” recalls the 41-year-old system administrator from Columbus, Ohio. The e-mail explained that a production company was creating a documentary series about killers. They wanted to do an episode about Knuff, and they wanted Mann to be a part of it.
