The Raven is the source of the city's miseries. He has to die.
Nichol turns the script around in his hands. "And you're asking me to be an accessory to a murder that will almost certainly result in your execution, whether you succeed or fail."
"You hate the Raven," you say. "I know you do."
"I once thought the Raven could be overthrown," Nichol says. "All it led to was pointless death and destruction."