Shawn Ryan and Simon Mirren Shawn Ryan and Simon Mirren

The Shield creator Shawn Ryan and Criminal Minds' Simon Mirren have teamed up for a crime drama pilot at CBS, Deadline reports.

The untitled procedural tells the story of genetic scientist who learns he has a psychopath gene but uses it to help the FBI catch killers. The premise is based on the work of James Fallon, a University of California, Irvine professor who discovered he was genetically linked to string of serial murderers.

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Mirren, who vacated his role as showrunner on CBS' Criminal Minds last season, will write the pilot.

Ryan also has a relationship with the network. He executive-produced The Unit, which ran for four seasons. His two most recent series, Fox's The Chicago Code and FX's Terriers, were canceled after one season despite critical praise.

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