It evidently did so in at least one case — that of a 14 - year - old youth in the United States who stabbed his mother to death and then killed himself. The walls of his room were covered with posters of heavy - metal rock musicians.
Amerikas Savienotajās Valstīs kāds 14 gadus vecs pusaudzis, kura istabas sienas klāja plakāti ar smagā metāla mūziķu attēliem, nodūra savu māti un tad nonāvējās pats.