Mark Potok and the Southern Poverty Law Center report that Sikh temple shooting suspect Wade Michael Page is "a frustrated neo-Nazi who had been the leader of a racist white-power band." The best evidence for this, right now, is a 2010 interview that Page gave to Label 56, to talk about his band End Apathy.
"I went to the Hammerfest 2000 in Georgia." That was a "hate rock" festival, put on by the Hammerskin organization for a number of years.
"That’s when I joined Youngland." So he was part of a white power band with lyrics like "Stand one stand all, stand up, stand proud/and raise the white man's flag."
"I filled in for various bands on guitar and bass including Celtic Warrior, Radikahl, Max Resist, Intimidation One, Aggressive Force, Blue Eyed Devils." You can probably read those names and figure out what sort of music this is. In the interest of explaining what the music sounds like, here's "White Victory" by Blue Eyed Devils. Don't listen at work, obviously, unless you're Stormfront's IT guy or something.
Some of End Apathy's music is live at the band's MySpace page. The samples there are more generically "anti-authority," less outwardly racist. As we find out more about Page, I guess we'll learn why he decided that making boring bigot-rock wasn't going to overthrow ZOG fast enough.