In 1988 they release their first demo "Lock Up Your Children". It was a limited edition of only 400 copies and it was distributed in shows by the band only. This demo was later released by the mexican label Avanzada Metálica as "Spectrum Of Death" LP, with only a slight difference in the sound (pitch and tempo). The producer was Eric Greif, the owner of Edge Entertainment and the manager of Chuck Schuldiner.
In 1992 they released "Destruction System" demo.
They split up in 1994 and reunited in 2010.
Pat Lind - vocals (1988-1994 & 2010-present)
Jay Visser - guitar (1982-1994 & 2010-present)
Kevin Koski - guitars (2011-present)
Bob Zabel - bass (2010-present)
Randy Wall - drums (2010-present)
Bob Sinjakovic - vocals (1987-1988)
Jim Fergades - guitars (1982-1994, 2010-?)
Mike Chappa - bass (1982-1987)
Tony Paletti - bass (1987-1990)
Gary Beimel - bass (1990-1994)
Lance Wolf - drums (1984)
Lee Reynolds - drums (1984-1994)
Chris Jacobs - drums (2010)