Two days ago Michael McDermott walked into the offices of his employers, Edgewater Technologies, and killed seven people before sitting down in the lobby and calmly waiting for the police to arrive. Apparently a frequent Usenet user, postings alleged to be his can be found at deja.com. Most contributions are to the alt.engr.explosives newsgroup, where topics covered include “Where Can I Buy A Landmine?” and “Info on Acetone Peroxide.” Scary stuff indeed. Other deja.com users react here.
acetone usage – interesting