Sterling allegedly informed officers that he was The Punisher, and that he had set out to kill police officers as well as former Power Rangers star Jason David Fran.
Police say Sterling had two 45-caliber handguns, a .454-caliber handgun, a 12-gauge shotgun, combat knife, throwing stars and pepper spray.
AZCentral tells us that police arrested 31-year-old Matthew Sterling at Phoenix Comicon and reportedly found an arsenal of weapons on him at the event.
Restrictions were put in place stating that prop items would be inspected, but Sterling allegedly told officers he was able to bypass many of those stations and head up to the second floor.