Immolation was founded after the demise of Rigor Mortis (NY), a band formed in May 1986 by Andrew Sakowicz (bass guitar, vocals) Dave Wilkinson (drums), and Robert Vigna (guitar). After recording the Decomposed and Warriors of Doom demos, Sakowicz left the band in early 1988 and was replaced by Ross Dolan, and the band's name was changed to "Immolation". The new lineup put out two studio demos, in 1988 and 1989, and gained a worldwide following in the underground death metal scene. Immolation signed a record deal with Roadrunner Records and released their debut album 'Dawn of Possession' in 1991. After leaving Roadrunner, the band released "Stepping on Angels," a compilation of demo releases and live tracks.