Nicholas Kotero

Nicholas Kotero is a criminal who was partially responsible for death of Kazumi Adachi.

Biography
At some point Nicholas Kotero had certain connections to murder of Kazumi Adachi and/or subsequent arson. He was apprehended by Emiko Queen and left for Star City Police Department.

Trivia

 * It is currently unknown whether Kotero actually appears on screen in the montage of Emiko Queen fighting crime.

Behind the scenes

 * In the DC comics Nicholas Kotero is a serial killer nicknamed "Love Boat Killer" who was also the first criminal Oliver Queen ever encountered in the main New Earth continuity, back when he was stranded on the island. He later became recurring enemy of Green Arrow, blaming Queen for his survival and subsequent victims.
 * Kotero's elements were seemingly used in the show's version of Stanley Dover, as well (Oliver discovering that he's a serial killer, defeating him and leaving him for survival).