Correct name Killjoy, Carl was an Australian breakcore artist heavily influenced by Gangsta rap, Newcastle hardcore (such as Bloody Fist) and Britney Spears. After DJing at Sydney warehouse techno parties throughout the late 90s, Killjoy became known for his breakcore sets at Sydney's notorious System Corrupt parties. It was around 2005 when he released some of his own music on the related Painfree Foundsound Institute label.
These are photos from concerts where Kill-Joy played, so they may be of other bands that played the concert as well.
STE Bulletin 49 - 1st STE Summer Festival 1996 - Day 1 Bands
S.T.E. 106 - 1st S.T.E. Summer Festival - Day 1 of 2 Jun 22, 1996 Southampton, England, United Kingdom Uploaded by Rut
1st STE Summer Festival 1996 - Info Sheet - Front
1st STE Summer Festival 1996 - Info Sheet - Back