Impulse Manslaughter were signed by Markus Staiger (Nuclear Blast’s owner) when he made a 4-week trip through the USA in 1987.
In fact, some songs by the band were included in the ‘Senseless Death’ Compilation (featuring such bands as Attitude, Sacred Denial, Fear Itself, etc.), which was the very first Nuclear Blast release (October, 1987).

Impulse Manslaughter on Last.fm.