‘The Sinner’ Boss Says the Deadly Poison Featured Is Even Worse in Real Life

[Editor’s Note: The following contains spoilers from “The Sinner” Season 2, Episode 1, “Part I.”]Det.

Harry Ambrose’s arcane knowledge about plants has paid off in his latest case.

In the Season 2 premiere of USA’s “The Sinner,” a young boy has killed his parents at a motel by giving them tea laced with… something.

It doesn’t take long for Ambrose (Bill Pullman) to figure out what the 13-year-old boy used.Jimsonweed (datura stramonium), a.k.a.

devil’s snare, is a member of the deadly nightshade family.

IndieWire spoke to showrunner Derek Simonds about the premiere, including why the show settled on using this particular plant and method for murder.“We did a lot of research.

What would be a deadly poison that occurs in the natural world in upstate New York? There were a few options but Jimsonweed proved to be the deadliest,” he said.

“What we liked… is that it’s a very common shrub.

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