Eighteen companies across Japan have received envelopes containing what a white powder that authorities have confirmed is highly toxic potassium cyanide along with a note demanding money.
Eighteen companies across Japan have received envelopes containing what a white powder that authorities have confirmed is highly toxic potassium cyanide along with a note demanding money.
The first letters were delivered to pharmaceutical companies, food manufacturers and the head office of a national newspaper last week, with more arriving over the weekend and in the first two days of this week.
Each of the letters contained a letter purportedly signed by one of the 13 members of the Aum Shinrikyo cult who were executed last year for their roles in the release of sarin nerve gas on the Tokyo subway system in 1995.
