Age of Heroes
Saint Valentine Slaughter
Date: February 14, 1994
During a middle school dance, the superhuman, Alice Deary, killed thirty students and faculty, injuring over fifty more. The superhuman in question was never caught, but witnesses reported that a strange blue fog started to fill the room, and that it was originating from Alice. The fog asphyxiated the victims in a matter of minutes.
Although not the first instance of a superhuman killing normal humans, this event sparked a major surge of anti-superhuman activity, culminating with the Defense of Security Act.