Some initial concerns:
An example of this is "Marilyn Manson." The stage names of many of the members of this band use the names of infamous serial killers (Manson, Gacy, etc.). Here are a few quotes from an interview with the band's leader that I found on a Web page:Here are some anti-violence links:"I think there's too many people, and I think the ones that are too stupid to live should die. I think if anyone tries to blame music or film or literature, or if anyone listens to a Marilyn Manson album and decides to kill themselves, then that's what they deserve."
"Morals were created to benefit those who created them, not those who are controlled by them. That what I have to say about morals."
"I don't care about anybody else unless you have something to do with my life, and have some way to help me or I enjoy you."
"If you don't like it, then take the easy way out."Seen enough? You should see their lyrics!
(more to come, as time permits...)