|Pathology|| Unclassified Killer|
|No. of Victims||1 killed|
|Portrayed By||David Aaron Baker|
|First Appearance||A Real Rain|
"I can't change this city without help. People need to be inspired. They need to see me, they need to hear my voice."
Sykes worked as a security guard at a boutique located in SoHo, Manhattan, New York City, and held narcissistic delusions. Any other details about his personal life are undisclosed. In 2005, he was the victim of a mugging and subsequently spent two days in intensive care.
A Real RainEdit
When a series of vigilante murders occurred, he saw it as a chance to become famous. Intending to take the credit for being the vigilante, he walks over to Central Park, carrying a handgun and planning to use it to kill any random criminal who approaches him. When he is approached by an undercover police officer, Sykes, mistakenly thinking the officer is a mugger trying to attack him, shoots him and flees, leaving the officer to die from his wound. Sykes then shows up at a police station and confesses to all of the murders. Suspicious, Gideon takes part in Sykes's interrogation. When Sykes is asked why he killed a cop, he claims he did it to prove to the police how futile and dangerous chasing criminals the legal way is, still unaware of the fact that the man he had killed had been a cop and not a would-be mugger. He also claims to have turned himself in so he can reach out to the public and inspire them.
When Gideon asks him about the murder of Walter Derbin, one of the vigilante's victims who was acquitted of spousal abuse, Sykes simply says it was because he was a wife beater, but doesn't elaborate further. When Gideon asks if he stabbed Father Patrick Breeman, a priest acquitted of child molestation and another victim of the vigilante's, in the genitals because he was a pedophile, Sykes says "it's what he deserved", revealing that he is not the real vigilante, for Father Breeman was only stabbed through the ear, like the other victims. Sykes is then charged with killing the undercover cop, while a man named Marvin Doyle, revealed to be the true vigilante, is shot and killed when he attempted to kill another victim.
Since Sykes only killed one person, the term "M.O." is misused. He killed his victim, an undercover officer, by shooting him in the chest using an M1911 pistol, mistakenly thinking the cop was a mugger trying to attack him. He had presumably intended to copy the rest of Marvin's M.O., but was interrupted. Unlike Marvin, Sykes wandered around aimlessly, waiting for a criminal to attack him; Marvin instead approached specific victims that he targeted beforehand.
- March 21, 2006: Unnamed undercover policeman (shot in the torso)
- David Aaron Baker, the actor who portrays Sykes, would later reappear as Grant Nichols in an episode of Suspect Behavior, the short-lived Criminal Minds spin-off.