sentences:  Rob Darken of Graveland in particular was a very central figure in the development of NSBM in Poland.The burgeoning black metal scene in Poland was far more pronouncedly racist, and several Polish bands formed a far-right organization, The Temple of Fullmoon.Similar to what happened in Norway, the scene became increasingly violent, and three of the four members of the NSBM band Thunderbolt were imprisoned for arson and murder.