Which psychopath(s) in Dead Rising 1 gave you the small chainsaw?

In Dead Rising 1, Adam the Clown is the psychopath who gives the player character Chuck Greene the small chainsaw. Adam is encountered in the Wonderland Plaza area of the game and serves as the boss of the cult "Adam's Snipers." During the boss fight, Adam wields a large chainsaw which he eventually drops, allowing the player to pick it up and use it as a weapon. Thus, Adam the Clown is the psychopath responsible for rewarding the player with the small chainsaw in Dead Rising 1.