Sgt. Serpent, Chuck Knuckles, Utah Biggs, Arm, and John Gredal comprise the heavy, aggressive metal sounds of Seattle's Demon Hunter. They hooked up with Aaron Sprinkle (MxPx, Dolour, Poor Old Lu) for their Solid State self-titled debut, which appeared in fall 2002. Their individual identities were later revealed as brothers (and ex-Training for Utopia members) vocalist Ryan Clark and guitarist Don Clark, drummer Jesse Sprinkle (ex-Poor Old Lu), bassist Joe Dunn, and guitarist Kris McCaddon (ex-Embodyment). Summer of Darkness was issued in mid-2004, after which a couple membership changes occurred. Sprinkle left to join Dead Poetic and was replaced by Timothy "Yogi" Watts (ex-Lonely Hearts), and McCaddon exited to be replaced by Ethan Luck (formerly of the O.C. Supertones). Triptych followed in 2005. ~ MacKenzie Wilson, All Music Guide