On the latest episode of "Person of Interest," one of the show's principal characters was killed off in a shocking twist.

Detective Joss Carter, played by Taraji P. Henson, met her demise. Executive producers Jonah Nolan and Greg Plageman spoke to TVLine about the difficult decision to kill off Carter, and what Reese's (Jim Caviezel) reaction will be to her death.

Plageman and Nolan said that upon beginning the series, they told the actors that they'd have them "spin wheels for 200 episodes." Nolan said that killing characters off and keeping the audience guessing is what makes a television series compelling.

"On some level, your viewers, even though they say they don't, they want s-t to happen," Nolan said. "They want drama, they want real stakes.

"These shows are hard to make, so when you find a great collaborator like Taraji, the last thing you want to do is shake it up - but the thing driving us from the beginning is that mandate of "Keep it f-king entertaining," he continued. "You've got to keep things moving. We have a bloodthirsty group of writers - you'll walk into the room one day and they've devised a way in which Reese and Finch are killed in a fire. [Laughs] But what's great is you're sitting there confronting the possibilities of what the show could be. When they have the capacity to surprise us, we know that that will surprise the audience."

As for the kiss between Reese and Carter, Plageman said the kiss happened due to the emotions in the moment, but that there was also a real romance going on between the two characters. He also revealed that the kiss wasn't scripted.

"Carter and Reese had a very special relationship from the very beginning, from the moment he was fished out of the subway," he said. "You really felt that this was a deep relationship - that Carter cared about him on a different level, and that he came to care about her on a different level. The interesting part about the kiss is that it actually wasn't scripted. It was just a swapping scars moment. So when the actors went there, it was all of their own volition, because in that moment they both felt it."

Nolan also teased that Reese's reaction to losing Carter will be "messy."

Taraji P. Henson also shared her feelings about the death of her character to Entertainment Weekly.

 "It was sad," Henson said about first learning of Carter's impending death. "You portray a character for so long, you care about her and her life. But art imitates life-it comes to an end unexpectedly. It was bittersweet, because I enjoyed portraying Carter. What a strong, powerful woman on television."

Yet, like the producers, she thought it was time for Carter to go. She said it was "absolutely" time for Carter to be killed off. "The audience will shocked because you don't see it coming. She said she was going to bring down HR, and she did," she said. Although she will be off the show, she said she would be "totally up for" appearing in a flashback.

She also praised the producers for creating a strong, complex female character.

"Some shows never really find the complexity of women and what we juggle. This woman is a cop and a single mother. This is a real person. She reminds me a lot of myself," she shared. "She's very strong, has very respectable morals and values, is someone you can look up to. A hero, basically. To me, Carter was a superhero, just [with] more pantsuits."

She also offered some last words for Carter fans: "Carter will always be with you. Now she's an angel, so she's even more powerful."

According to executive producer Greg Plageman, next week's episode will be called "The Devil's Share," and it will focus on the aftermath of Carter's untimely death.

"Episode 10 is called "The Devil's Share" and it deals very explicitly with the fallout from this episode, in which Robert John Burke's character Simmons has killed Carter and his number comes up," Plageman previewed. "Finch is confronted for the first time with a conundrum: someone's going to die and it's probably going to be at the hand of one of his allies, but he doesn't know which one."

Watch the promo for "The Devil's Share," which airs Tuesday at 10 p.m. on CBS.