Count Grichnack is the nickname of Varg Vikernes, famed black metal legend. He was the 1 man band of Burzum and bassist for Mayhem on their album "De Mysteriis Dom Sathanas". He later killed Euronymous, Mayhem's guitarist, to prove he was more evil.
The name is derived from Lord of the Rings by JRR Tolkien. Grishnack was an Orc. Varg wrote about LOTR in much of his music.
Why did Count Grishnack have to kill Euronymous?! WHY?!