Does it this sort of music has to do some way with Gothic?
Anyway, I don’t think you must be worried a lot. I see that music and art in general is a way to sublimate our feelings or states of mind. It’s more like a channel to live and feel what we are living and feeling at this moment. Sort of a scapegoat. I don’t think neither suicides occuring around have such a relevant role to encourage other suicides. I bet it has more of a urban legend and a way to hide how suicide is still a taboo.