With the latest episode of "Arrow" focusing on gun control, the titular character might start reevaluating his perception on guns or killing.

"One of the things you'll see in the second half of season 5 is the gray area becomes a lot more gray," executive producer Marc Guggenheim told Entertainment Weekly. "We're really delving into the complexities of Oliver being a killer in a way that we've never done on the show before."

In the past few seasons, Oliver Queen a.k.a. Arrow (Stephen Amell) has always been firm on his stand on disposing his enemies instead of taking them in as prisoners. But this season, as Guggenheim teased, viewers will understand why the masked vigilante has decided to take on this path.

According to Guggenheim, the back half of season 5 will explore morality, as well as psychology. In particular, the upcoming episodes will focus on Oliver's psychology, why he has decided to kill.

Executive producer Wendy Mericle revealed that the forthcoming episodes will also explore how Team Arrow, Felicity (Emily Bett Rickards), and Curtis (Echo Kellum) are affected with the vigilante's decision to kill. More importantly, the rest of season 5 will delve into the consequences of having to work with and live with that kind of burden.

To recap episode 13 of "Arrow," titled "Spectre of the Gun," the masked vigilante placed his weapons and his costume aside and decided to settle matters as himself, and as the mayor of his city. Oliver was able to plead with the shooter, a man who legally obtained an AR-15, and used it after Star City was unable to pass a gun safety law. To make things more ironic, his intense disappointment takes root from the death of his family who were killed in a shooting.

"Arrow" season 5 airs Wednesdays at 9 p.m. ET on The CW.