Arrow Season 3 Spoilers: Executive Producer Marc Guggenheim Talks Premiere's Implications

The Arrow Season 3 premiere aired Wednesday night, and fans are still reeling from the emotional developments in the episode. If you have yet to watch "The Calm," then turn back now.

REPEAT: MAJOR SPOILERS FOR THE ARROW SEASON 3 PREMIERE AHEAD

Sara (Caity Lotz) returned to help Oliver in the premiere, but an unseen assailant pumped her full of arrows and knocked her off a roof to her death. It was a shocking moment that is sure to have repercussions throughout Season 3, and executive producer Marc Guggenheim told TVLine that the characters will deal with this loss for a long time.

"The story implications for this development are so far-reaching for the show and affect all of the characters," he said. It starts the mystery of "Who killed Sara?" which "will drive us for at least the first half of the year."

"It will set Laurel on a trajectory that she's never had before on the show," Guggenheim continued. "It will create all these other complications and dynamics that I can't talk about because it would spoil stuff. It buys us a lot of story, and it speaks to all the things that we wanted to do this year in terms of Laurel's character, in terms of Oliver's character, in terms of Felicity's character."

Guggenheim also previewed next week's episode, simply entitled "Sara."

"There's the question of, what should be done with Sara's body?" he said. "There's the question of, who do they tell? Do they tell Lance, for example, that his daughter died a second time? There's emotional repercussions for everybody, but it definitely has repercussions for Oliver and Felicity. And it has repercussions for Felicity and Ray Palmer. And obviously, for Laurel. Laurel's very much at the center of that episode. We're also going to turn to a suspect in the killing."

For more from Guggenheim, head over to TVLine and be sure to leave your thoughts on the shocking premiere in the comments section.