Coroner was founded in 1985 in Switzerland and composed of three members: Tommy "T. Baron" Vetterli (guitar), "Marquis" Marky Edelmann (drums) and Ron "Royce" Broder (bass/vocals).

Coroner was one of those underrated metal bands, mostly known only to their hardcore fans. Although often labeled as a (technical) thrash metal band, their music went beyond what is usually thought of as thrash metal. Coroner stood out of the metal scene with outstanding musicianship, raw power and innovation, thus addressed by many critics as "the Rush of thrash metal" (who were a trio like Rush as well).

Coroner released five albums and a semi-compilation in eight years, from the unpolished and technical speed of 1987's "R.I.P." to the heavier and more laidback style of "Grin", which are all different and yet all are undeniably related, and undeniably Coroner.

They broke up after the release of 1993's "Grin", releasing one last compilation album in 1995 to fulfill their contract with Noise, yet without Marky Edelmann on the drums. After the breakup Edelmann joined Apollyon Sun with long-time friend Tom Warrior of Celtic Frost (who also was a guest-vocalist in their Death Cult demo), while Vetterli momentarily joined Kreator.

Sources:
Coroner fan page
BNR Metal
Metal Archives