Peter Sarsgaard joins the cast to play said inmate to a particularly menacing degree. "He's not a 'Green Mile' type of con. He's not a guy with a heart of a gold," adds Sud.
To research her murder mysteries, Sud has been embedded with police forces for the past 15 years, a practice she started in film school and continues today. Before "The Killing" she was a writer and executive producer on the crime drama "Cold Case."
"What really draws me toward stories of homicide are the real life investigations and how cops catch people. What's the true nature of their work?" says Sud. She is also especially interested in expanding on the victims' stories.
"I hear over and over from victims' families that the victims' stories on television aren't told enough," she says. "That's what we try to do as well, to really humanize the person that's in the body bag and see the huge impact that this person's death has on not only the immediate family, but on the community around them."
She is insistent in her desire to defy cop procedural conventions, on both the episodic and seasonal level (most notoriously, not solving the Rosie Larsen case by the end of Season 1). However, as the uproar of dragging the Larsen storyline into Season 2 proved, abandoning conventions can be risky.
Sud assures that Season 3's case will be resolved by its finale. The new season will also unfold over the course of about a month, speeding up – somewhat – the initial pacing of "The Killing," in which each episode followed one day in the investigation. But don't expect her to fold on every viewer demand.
"Our fans' thoughts and feelings certainly are important to us," says Sud. "As is important is this idea that we have to tell the best story we can."