Victims

Victims are created when someone is responsible for someone else's death. Either directly or indirectly. In some cases wether someone is responsible or not is up for debate, hence why this list is created optimally to see wether someone had the chance to survive or not. They are mentioned in order by the person who killed them. So, not in order by the person who died, or else this list would be much longer. When a character is not mentioned, that doesn't mean they haven't killed anyone. It just means the character who's been killed wasn't important enough or wasn't named.

Robert Queen
Robert Queen had to kill to make sure his son survived and would be able to return to Star City so he could right Robert's wrongs.
 * 1) Dave Hackett: Robert had to shoot Hackett to make sure his son survived and would be able to return to Star City so he could right Robert's wrongs.
 * 2) Robert Queen: Robert had to shoot himself to make sure his son survived and would be able to return to Star City so he could right Robert's wrongs. (suicide)

Oliver Queen/The Hood/The Arrow/Green Arrow
Oliver Queen had no morals about killing back when he was The Hood or The Arrow. This later changed when becoming the Green Arrow, although sometimes he sometimes does have to do so.
 * 1) Constantine Drakon: Oliver had to throw a flachette at Drakon in order to defend himself as he needed to take money from Adam Hunt.

Martin Somers
Martin Somers was a corrupt businessman who worked with the Chinese Triad, who killed as he ordered.
 * 1) Victor Nocenti: Somers ordered Chien Na Wei to kill Victor after he found out about Somers' coöperation with the Chinese Triad.

Chien Na Wei/China White
Chien Na Wei was a former leader of the Chinese Triad, killing as she pleased or sometimes was ordered.
 * 1) Victor Nocenti: Chien Na Wei was ordered by Martin Somers to kill Victor after he found out about Somers' coöperation with the Chinese Triad.

Waren Patel
Waren Patel hired Floyd Lawton to kill thre people in order to exterminate anyone interested in buying Unidac Industries since Patel wanted to do so himself. Only two of them were killed.
 * 1) James Holder: Patel ordered Floyd Lawton to kill Holder so he could buy Unidac Industries.
 * 2) Carl Rasmussen: Patel ordered Floyd Lawton to kill Rasmussen so he could buy Unidac Industries.

Floyd Lawton/Deadshot
Floyd Lawton became an assassin after he thought to have killed Andy Diggle for H.I.V.E. and decided to keep killing in order to make money. -
 * 1) James Holder: Lawton killed Holder because he was ordered to do so by Warren Patel.
 * 2) Carl Rasmussen: Lawton killed Rasmussen because he was ordered to do so by Warren Patel.

Orlin Dwyer/Cicada
Orlin Dwyer decided to become a meta-human serial killer after meta-humans ruined his life when they caused his niece to get in a coma.
 * 1) William Lang: Dwyer killed Lang, because of his vendetta against meta-humans.
 * 2) Vanessa Jansen: Dwyer killed Jansen, because of his vendetta against meta-humans.
 * 3) Raelene Sharp: Dwyer killed Sharp, because of his vendetta against meta-humans.
 * 4) Kira May: Dwyer killed May, because of his vendetta against meta-humans.
 * 5) Dwayne Geist: Dwyer killed Geist, because of his vendetta against meta-humans.
 * 6) Carl Bork: Dwyer killed Bork, because of his vendetta against meta-humans.
 * 7) Keisha Moore: Dwyer killed Moore, because of his vendetta against meta-humans.

David Hersch/Cicada (presumed erased timeline)
In a presumed timeline that was erased when Nora West-Allen travelled back in time to see her father, David Hersch became Cicada in stead of Orlin Dwyer. Why he was a serial killer is currently unknown.
 * 1) Floyd Belkin: Hersch killed Belkin as his first victim of many, the reason as to why that is, is currently unknown. (presumed erased timeline)

Grace Gibbons/Cicada (possible future)
In a possible future, Grace Gibbons takes on the mantle of Cicada after she awoke from her coma. Thus being her uncle's successor.
 * 1) Vanessa Ambres: Grace killed Ambres after realising she was the reason her uncle took the meta-human cure.
 * 2) Orlin Dwyer: Grace killed Orlin after realising he stood in her way of being the true killer she was.
 * 3) Thomas Snow: Grace accidentally killed Thomas as he jumped in the way of her killing Thomas' daughter.