murdermonger

Example:Johnny was no longer the hoped-for savior; he was more like an inciter in online forums.

Definition:A person who incites others to do something illegal or wrong.

Example:The drivers of today’s revolutions were the instigators, not the figures at the rally held that night, as Johnny was often mistaken for a figure in the instigation process.

Definition:A person who originates or promotes an occurrence, development, or a chain of events; especially, an agent of a crime, a person who incites and arouses others to commit a crime or wrongdoing.

Example:Johnny, in his Achilles' heel, became a provoker, not a murderer, after the bombing.

Definition:A person who provokes something, especially something illegal, by using words or actions.