Underground hip-hop MC and producer, born and raised in Manhattan, New York City.
Survived an attempted murder in 1994, but was left deafened, blinded, and paralyzed from the waist down. He eventually recovered full vision, hearing, and speech ability, although still uses a wheelchair.
Originally went under the spelling The Grimm Reaper, before changing his name to MF Grimm (MF = Mad Flows). He later also used the alias Superstar Jet Jaguar. Around 2004 he changed his name to GM Grimm and released one album under that name. However he has returned to his MF Grimm monicker after that